Highest-income counties in the United States

There are 3,141 counties

County (United States)

In the United States, a county is a geographic subdivision of a state , usually assigned some governmental authority. The term "county" is used in 48 of the 50 states; Louisiana is divided into parishes and Alaska into boroughs. Parishes and boroughs are called "county-equivalents" by the U.S...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The source of the data is the U.S. Census Bureau and the data is current as of the indicated year. Independent cities are considered county-equivalent by the Census Bureau.

2011

The rankings are based on the median annual household income estimates from 2005 to 2009 in each county in the nation, provided by the 2011 U.S. Census' American Community Survey. Since cities in Virginia are independent of surrounding counties they are included in the Census Bureau's ranking.

Number of counties by state in following list: Virginia 5 plus 3 independent cities, Maryland 4, New Jersey 3, New York 3, California 2, Colorado 1, Georgia 1, New Mexico 1, Ohio 1, Tennessee 1. Of the top 25 counties, 10 are part of the Baltimore-Washington Metropolitan Area

Baltimore-Washington Metropolitan Area

The Baltimore-Washington Metropolitan Area is a combined statistical area consisting of the overlapping labor market region of the cities of Baltimore, Maryland and Washington, D.C.. The region includes Central Maryland, Northern Virginia, and Jefferson County in the Eastern Panhandle of West...

, 6 counties are part of the New York Metropolitan Area

New York metropolitan area

The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

, and 2 counties are part of the San Francisco Bay Area

San Francisco Bay Area

The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

. By Census region, 14 counties are located in the South

Southern United States

The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

, 6 in the Northeast

Northeastern United States

The Northeastern United States is a region of the United States as defined by the United States Census Bureau.-Composition:The region comprises nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont; and the Mid-Atlantic states of New...

, 4 in the West

Western United States

.The Western United States, commonly referred to as the American West or simply "the West," traditionally refers to the region comprising the westernmost states of the United States. Because the U.S. expanded westward after its founding, the meaning of the West has evolved over time...

, and 1 located in the Midwest

Midwestern United States

The Midwestern United States is one of the four U.S. geographic regions defined by the United States Census Bureau, providing an official definition of the American Midwest....

. 17 of the 25 counties are part of the densely-populated Northeast Megalopolis

Northeast megalopolis

The Northeast megalopolis or Boston–Washington megalopolis is the heavily urbanized area of the United States stretching from the the northern suburbs of Boston, Massachusetts to the southern suburbs of Washington, D.C. On a map, the region appears almost as a perfectly straight line. As of 2000,...

.

Rank	County	Median household income
1	City of Falls Church, Virginia Falls Church, Virginia The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...	$113,313
2	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$112,021
3	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$104,259
4	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$102,500
5	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$101,003
6	Los Alamos County, New Mexico Los Alamos County, New Mexico -2010:Whereas according to the 2010 U.S. Census Bureau:*87.8% White*0.6% Black*0.8% Native American*6.0% Asian*0.0% Native Hawaiian or Pacific Islander*2.6% Two or more races*2.2% Other races*14.7% Hispanic or Latino -2000:...	$100,423
7	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$99,522
8	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$96,316
9	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$96,233
10	City of Fairfax, Virginia	$96,233
11	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$93,806
12	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$92,450
13	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$92,213
14	Calvert County, Maryland Calvert County, Maryland Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...	$90,621
15	Stafford County, Virginia Stafford County, Virginia Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...	$90,586
16	Prince William County, Virginia Prince William County, Virginia -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...	$88,850
17	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$88,358
18	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$88,040
19	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$88,036
20	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$87,728
21	Charles County, Maryland Charles County, Maryland Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....	$86,141
22	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$85,569
23	Delaware County, Ohio Delaware County, Ohio Delaware County is a fast-growing suburban county in the state of Ohio, United States, within the Columbus, Ohio Metropolitan Statistical Area. According to the United States Census Bureau's 2004 population estimates, Delaware County's population of 142,503 made it the fastest growing county in...	$85,054
24	Poquoson city, Virginia Poquoson, Virginia Poquoson is an independent city located on the Virginia Peninsula, in the Hampton Roads metropolitan area of the U.S. state of Virginia. The population was 12,150 according to the 2010 Census...	$84,688
25	Suffolk County, New York Suffolk County, New York Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...	$84,530

2008

This data is average 2006-2008 from the American Community Survey of the United States Bureau of the Census.
Number of counties by state in following lists: Virginia 6 plus 2 independent cities, Maryland 4, New Jersey 3, New York 3, California 2, Colorado 1, Georgia 1, Pennsylvania 1, Tennessee 1, Utah 1.

Of the top 25 counties, 11 are part of the Washington Metropolitan Area

Washington Metropolitan Area

The Washington Metropolitan Area is the metropolitan area centered on Washington, D.C., the capital of the United States. The area includes all of the federal district and parts of the U.S...

, 6 counties are part of the New York Metropolitan Area

New York metropolitan area

The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

, and 2 counties are part of the San Francisco Bay Area

San Francisco Bay Area

The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

. By Census region, 14 counties are located in the South

Southern United States

The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

, 7 in the Northeast

Northeastern United States

The Northeastern United States is a region of the United States as defined by the United States Census Bureau.-Composition:The region comprises nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont; and the Mid-Atlantic states of New...

, 4 in the West

Western United States

.The Western United States, commonly referred to as the American West or simply "the West," traditionally refers to the region comprising the westernmost states of the United States. Because the U.S. expanded westward after its founding, the meaning of the West has evolved over time...

, with none located in the Midwest

Midwestern United States

The Midwestern United States is one of the four U.S. geographic regions defined by the United States Census Bureau, providing an official definition of the American Midwest....

. 18 of the 25 counties are part of the densely-populated Northeast Megalopolis

Northeast megalopolis

The Northeast megalopolis or Boston–Washington megalopolis is the heavily urbanized area of the United States stretching from the the northern suburbs of Boston, Massachusetts to the southern suburbs of Washington, D.C. On a map, the region appears almost as a perfectly straight line. As of 2000,...

.

Rank	County	Median Household Income	Population	Educational Attainment*
1	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$110,643	277,433	58%
2	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$106,785	1,005,980	60%
3	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$101,710	272,412	60%
4	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$103,227	321,589	53%
5	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$100,947	129,000	52%
6	City of Fairfax, Virginia	$98,133	23,281	52%
7	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$97,565	486,459	52%
8	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$97,480	270,286	54%
9	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$96,390	204,889	71%
10	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$93,999	942,747	59%
11	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$93,579	1,352,817	45%
12	Stafford County, Virginia Stafford County, Virginia Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...	$89,536	120,219	36%
13	Calvert County, Maryland Calvert County, Maryland Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...	$89,049	88,126	30%
14	Prince William County, Virginia Prince William County, Virginia -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...	$88,675	358,719	38%
15	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$88,580	99,195	40%
16	Goochland County, Virginia Goochland County, Virginia Goochland County is a county located in the Commonwealth of Virginia. As of 2010, the population was 21,717. Its county seat is Goochland. It is located in the Richmond-Petersburg region and is a portion of the Richmond Metropolitan Statistical Area ....	$88,552	20,494	32%
17	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$88,316	165,336	53%
18	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$88,101	246,985	55%
19	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$87,287	1,734,756	46%
20	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$86,938	158,009	46%
21	Charles County, Maryland Charles County, Maryland Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....	$86,586	140,032	28%
22	Summit County, Utah Summit County, Utah Summit County is a county located in the U.S. state of Utah, occupying a rugged and mountainous area. In 2010 its population was 36,324. It is part of the Salt Lake City Metropolitan Statistical Area as well as the Salt Lake City–Ogden–Clearfield Combined Statistical Area. The county is...	$85,258	35,448	53%
23	City of Alexandria, Virginia	$85,135	140,657	63%
24	Chester County, Pennsylvania Chester County, Pennsylvania -State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...	$84,844	485,083	51%
25	Suffolk County, New York Suffolk County, New York Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...	$84,767	1,510,716	34%
	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	$52,175	304,374,846	27%

*Based on bachelor's degree attainment (and above) for people 25 and older in the county

2007

Number of counties by state in following lists: Virginia

Virginia

The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

 6, Maryland

Maryland

Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 5, New Jersey

New Jersey

New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 3, New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 2, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 2, Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

 1, Georgia

Georgia (U.S. state)

Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

 1.

10 of the 20 counties are part of the Washington Metropolitan Area

Washington Metropolitan Area

The Washington Metropolitan Area is the metropolitan area centered on Washington, D.C., the capital of the United States. The area includes all of the federal district and parts of the U.S...

 and 5 counties are part of the New York Metropolitan Area

New York metropolitan area

The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

. By Census region, 12 counties are located in the South

Southern United States

The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

, 5 in the Northeast

Northeastern United States

The Northeastern United States is a region of the United States as defined by the United States Census Bureau.-Composition:The region comprises nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont; and the Mid-Atlantic states of New...

, and 3 in the West

Western United States

.The Western United States, commonly referred to as the American West or simply "the West," traditionally refers to the region comprising the westernmost states of the United States. Because the U.S. expanded westward after its founding, the meaning of the West has evolved over time...

. 16 of the 20 counties are part of the densely-populated Northeast Megalopolis

Northeast megalopolis

The Northeast megalopolis or Boston–Washington megalopolis is the heavily urbanized area of the United States stretching from the the northern suburbs of Boston, Massachusetts to the southern suburbs of Washington, D.C. On a map, the region appears almost as a perfectly straight line. As of 2000,...

.

Counties with populations of 250,000 or more

Rank	County	Median Household Income
1	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$107,207
2	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$105,241
3	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$101,672
4	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$97,658
5	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$94,684
6	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$92,824
7	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$91,835
8	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$89,782
9	Prince William County, Virginia Prince William County, Virginia -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...	$87,243
10	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$84,360

Counties with populations 65,000-250,000

Rank	County	Median Household Income
1	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$100,327
2	Calvert County, Maryland Calvert County, Maryland Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...	$95,134
3	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$94,876
4	Stafford County, Virginia Stafford County, Virginia Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...	$87,629
5	Fauquier County, Virginia Fauquier County, Virginia As of the census of 2000, there were 55,139 people, 19,842 households, and 15,139 families residing in the county. The population density was 85 people per square mile . There were 21,046 housing units at an average density of 32 per square mile...	$84,888
6	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$84,872
7	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$84,624
8	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$83,870
9	Charles County, Maryland Charles County, Maryland Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....	$83,412
10	Carroll County, Maryland Carroll County, Maryland Carroll County is a county located in the U.S. state of Maryland. In 2010, its population was 167,134. It was named for Charles Carroll of Carrollton , signer of the American Declaration of Independence. Its county seat is Westminster....	$82,492

2006

Source: US Census Bureau, 2006 American Community Survey, via Forbes

Forbes

Forbes is an American publishing and media company. Its flagship publication, the Forbes magazine, is published biweekly. Its primary competitors in the national business magazine category are Fortune, which is also published biweekly, and Business Week...

Number of counties by state in the top 20: Virginia

Virginia

The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

 5 plus 1 independent city, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 3, Maryland

Maryland

Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 3, New Jersey

New Jersey

New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...

 3, New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 2, Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

 1, Georgia

Georgia (U.S. state)

Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

 1, Tennessee

Tennessee

Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...

 1. Forty-two states do not have any counties in the top 20.

Rank	County	Median Household Income
1	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$100,318
2	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$99,371
3	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$94,260
4	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$93,297
5	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$92,125
6	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$91,688
7	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$89,587
8	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$87,624
9	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$87,350
10	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$85,994
11	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$85,892
12	Stafford County, Virginia Stafford County, Virginia Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...	$85,014
13	Calvert County, Maryland Calvert County, Maryland Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...	$84,891
14	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$84,838
15	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$83,682
16	San Mateo County, California San Mateo County, California San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...	$82,123
17	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$81,907
18	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$81,449
19	Prince William County, Virginia Prince William County, Virginia -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...	$80,783
20	City of Alexandria, Virginia Alexandria, Virginia Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...	$80,449

2000

Source: US Census Bureau: 2000 Census

Number of counties by state in the top 100: Virginia 10 plus 5 independent cities, Maryland 9, California 8, New Jersey 8, Colorado 6, Georgia 6, Illinois 6, Minnesota 5, New York 5, Texas 5, Alaska 3, Connecticut 3, Ohio 3, Pennsylvania 3, Wisconsin 3, Massachusetts 2, Michigan 2, Indiana 1, Kansas 1, Kentucky 1, Missouri 1, New Hampshire 1, New Mexico 1, Tennessee 1, Utah 1. Twenty-five states do not have any counties in the top 100.

United States of America: $41,994

Rank	County	Median Household Income
1	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$82,929
2	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$81,050
3	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$80,648
4	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$79,888
5	Los Alamos County, New Mexico Los Alamos County, New Mexico -2010:Whereas according to the 2010 U.S. Census Bureau:*87.8% White*0.6% Black*0.8% Native American*6.0% Asian*0.0% Native Hawaiian or Pacific Islander*2.6% Two or more races*2.2% Other races*14.7% Hispanic or Latino -2000:...	$78,993
6	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$77,340
7	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$76,933
8	City of Falls Church, Virginia	$74,924
9	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$74,335
10	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$74,167
11	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$72,279
12	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$72,030
13	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$71,551
14	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$71,306
15	Fayette County, Georgia Fayette County, Georgia Fayette County is a county located in the U.S. state of Georgia. As of 2000, the population was 91,263. The 2007 Census Estimate shows a population of 106,144. The county seat is Fayetteville....	$71,227
16	Hamilton County, Indiana Hamilton County, Indiana Hamilton County is a county located in the U.S. state of Indiana. Census 2010 recorded a population of 274,569. The county seat is Noblesville....	$71,026
17	Collin County, Texas Collin County, Texas As of the census of 2000, there were 491,675 people, 181,970 households, and 132,292 families residing in the county. The population density was 580 people per square mile . There were 194,892 housing units at an average density of 230 per square mile...	$70,835
18	San Mateo County, California San Mateo County, California San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...	$70,819
19	Johnson County, Kansas Johnson County, Kansas Johnson County is a county located in northeast Kansas, in the central United States. The county is largely suburban, being part of the Kansas City metropolitan area, and containing many of its affluent southwestern suburbs. As of the 2010 census, the county population was 544,179. Its county...	$69,817
20	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$69,104
21	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$68,890
22	Rockland County, New York Rockland County, New York Rockland County is a suburban county 15 miles to the northwest of Manhattan and part of the New York City Metropolitan Area, in the U.S. state of New York. It is the southernmost county in New York west of the Hudson River, and the smallest county in New York outside of New York City. The...	$67,971
23	DuPage County, Illinois DuPage County, Illinois As of the 2010 Census, the population of the county was 916,924, White Americans made up 77.9% of Dupage County's population; non-Hispanic whites represented 70.5% of the population. Black Americans made up 4.6% of the population. Native Americans made up 0.3% of Dupage County's population...	$67,887
24	City of Fairfax, Virginia Fairfax, Virginia The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....	$67,642
25	Livingston County, Michigan Livingston County, Michigan -Demographics:As of the census of 2000, there were 156,951 people, 55,384 households, and 43,531 families residing in the county. The population density was 276 people per square mile . There were 58,919 housing units at an average density of 104 per square mile...	$67,400
26	Delaware County, Ohio Delaware County, Ohio Delaware County is a fast-growing suburban county in the state of Ohio, United States, within the Columbus, Ohio Metropolitan Statistical Area. According to the United States Census Bureau's 2004 population estimates, Delaware County's population of 142,503 made it the fastest growing county in...	$67,258
27	Lake County, Illinois Lake County, Illinois Lake County is a county in the northeastern corner of the state of Illinois, on the shore of Lake Michigan. According to the 2010 census, it has a population of 703,462, which is an increase of 9.2% from 644,356 in 2000. Its county seat is Waukegan. The county is part of the Chicago metropolitan area...	$66,973
28	Stafford County, Virginia Stafford County, Virginia Stafford County is a county located in the Commonwealth of Virginia, a U.S. state, and just across the Rappahannock River from the City of Fredericksburg. As of the 2000 census, the population was 92,446, increasing to 128,961 in 2010.. Its county seat is Stafford. In 2006, and again in 2009,...	$66,809
29	Scott County, Minnesota Scott County, Minnesota Scott County is a county located in the U.S. state of Minnesota. It was organized in 1853 and named in honor of General Winfield Scott. As of 2010, the population was 129,928. Its county seat is Shakopee...	$66,612
30	Washington County, Minnesota Washington County, Minnesota Washington County is a county established in 1849 in the U.S. state of Minnesota. As of 2010, the population was 238,136. Its county seat is Stillwater.-History:...	$66,305
31	Prince William County, Virginia Prince William County, Virginia -National protected areas:* Featherstone National Wildlife Refuge* Manassas National Battlefield Park* Occoquan Bay National Wildlife Refuge* Prince William Forest Park-Government and politics:...	$65,960
32	Calvert County, Maryland Calvert County, Maryland Calvert County is a county located in the U.S. state of Maryland. It occupies the Calvert Peninsula which is bordered on the east by the Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. Calvert County's residents are among the highest...	$65,945
33	Carver County, Minnesota Carver County, Minnesota As of the census of 2000, there were 70,205 people, 24,356 households, and 18,778 families residing in the county. The population density was 197 people per square mile . There were 24,883 housing units at an average density of 70 per square mile...	$65,540
34	Chester County, Pennsylvania Chester County, Pennsylvania -State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...	$65,295
35	Suffolk County, New York Suffolk County, New York Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...	$65,288
36	Sussex County, New Jersey Sussex County, New Jersey The County of Sussex is the northernmost county in the State of New Jersey. It is part of the New York City Metropolitan Area. As of the 2010 Federal decennial census, 149,265 persons resided in Sussex County...	$65,266
37	Fairfield County, Connecticut Fairfield County, Connecticut Fairfield County is a county located in the southwestern corner of the U.S. state of Connecticut. The county population is 916,829 according to the 2010 Census. There are currently 1,465 people per square mile in the county. It is the most populous county in the State of Connecticut and contains...	$65,249
38	Bergen County, New Jersey Bergen County, New Jersey Bergen County is the most populous county of the state of New Jersey, United States. As of the 2010 United States Census, its population was 905,116. The county is part of the New York City Metropolitan Area. Its county seat is Hackensack...	$65,241
39	Rockwall County, Texas Rockwall County, Texas As of the census of 2000, there were 43,080 people, 14,530 households, and 11,972 families residing in the county. The population density was 334 people per square mile . There were 15,351 housing units at an average density of 119 per square mile...	$65,164
40	Summit County, Utah Summit County, Utah Summit County is a county located in the U.S. state of Utah, occupying a rugged and mountainous area. In 2010 its population was 36,324. It is part of the Salt Lake City Metropolitan Statistical Area as well as the Salt Lake City–Ogden–Clearfield Combined Statistical Area. The county is...	$64,962
41	McHenry County, Illinois McHenry County, Illinois McHenry County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 308,760, which is an increase of 18.7% from 260,077 in 2000. Its county seat is Woodstock. This county is part of the Chicago metropolitan area. It is the sixth largest county, in...	$64,826
42	Kendall County, Illinois Kendall County, Illinois Kendall County is a county located in the U.S. state of Illinois, about 40 miles southwest of Chicago. According to the 2010 census, it has a population of 114,736, which is an increase of 110% from 54,544 in 2000. It was the fastest-growing county in the United States between the years 2000 and...	$64,625
43	Monmouth County, New Jersey Monmouth County, New Jersey Monmouth County is a county located in the U.S. state of New Jersey, within the New York metropolitan area. As of the 2010 Census, the population was 630,380, up from 615,301 at the 2000 census. Its county seat is Freehold Borough. The most populous municipality is Middletown Township with...	$64,231
44	City and County of Broomfield, Colorado Broomfield, Colorado The City and County of Broomfield is a prominent suburb and tier of the Denver metropolitan area in the State of Colorado of the United States. Broomfield has a consolidated city and county government which operates under Article XX, Sections 10-13 of the Constitution of the State of Colorado. The...	$63,903
45	Fort Bend County, Texas Fort Bend County, Texas Fort Bend County is a county located along the Gulf Coast region in the U.S. state of Texas within the Houston–Sugar Land–Baytown metropolitan area. In 2000 its population was 354,452, while the 2010 U.S...	$63,831
46	Contra Costa County, California Contra Costa County, California Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...	$63,675
47	Westchester County, New York Westchester County, New York Westchester County is a county located in the U.S. state of New York. Westchester covers an area of and has a population of 949,113 according to the 2010 Census, residing in 45 municipalities...	$63,582
48	Norfolk County, Massachusetts Norfolk County, Massachusetts -National protected areas:* Adams National Historical Park* Boston Harbor Islands National Recreation Area * Frederick Law Olmsted National Historic Site* John Fitzgerald Kennedy National Historic Site-Demographics:...	$63,432
49	Oldham County, Kentucky Oldham County, Kentucky As of the census of 2000, there were 46,178 people, 14,856 households, and 12,196 families residing in the county. The population density was . There were 15,541 housing units at an average density of...	$63,229
50	North Slope Borough, Alaska North Slope Borough, Alaska -National protected areas:* Alaska Maritime National Wildlife Refuge ** Cape Lisburne** Cape Thompson* Arctic National Wildlife Refuge ** Mollie Beattie Wilderness * Gates of the Arctic National Park and Preserve...	$63,173
51	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$63,001
52	Waukesha County, Wisconsin Waukesha County, Wisconsin Waukesha County is a county in the U.S. state of Wisconsin. As of 2008, the population was 380,629. Its county seat is Waukesha.-History:The part of Wisconsin that Waukesha County now occupies was a part of Michigan when Milwaukee County was organized in September 1834. On July 4, 1836, the...	$62,839
53	Ozaukee County, Wisconsin	$62,745
54	Eagle County, Colorado Eagle County, Colorado Eagle County is the thirteenth most populous of the 64 counties of the State of Colorado in the United States. The county is named for the Eagle River. The county population was 41,659 at U.S. Census 2000. The county seat is the Town of Eagle...	$62,682
55	Elbert County, Colorado Elbert County, Colorado Elbert County is the 21st most populous of the 64 counties of the State of Colorado of the United States. The county population was 19,872 at U.S. Census 2000. The county seat is Kiowa...	$62,480
56	Will County, Illinois Will County, Illinois As of the census of 2000, there were 502,266 people, 167,542 households, and 131,017 families residing in the county. The population density was 600 people per square mile . There were 175,524 housing units at an average density of 210 per square mile...	$62,238
57	Charles County, Maryland Charles County, Maryland Charles County is a county in the south central portion of the U.S. state of Maryland.As of 2010, the population was 146,551. Its county seat is La Plata. This county was named for Charles Calvert , third Baron Baltimore....	$62,199
58	City and Borough of Juneau, Alaska Juneau, Alaska The City and Borough of Juneau is a unified municipality located on the Gastineau Channel in the panhandle of the U.S. state of Alaska. It has been the capital of Alaska since 1906, when the government of the then-District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900...	$62,034
59	Fauquier County, Virginia Fauquier County, Virginia As of the census of 2000, there were 55,139 people, 19,842 households, and 15,139 families residing in the county. The population density was 85 people per square mile . There were 21,046 housing units at an average density of 32 per square mile...	$61,999
60	Oakland County, Michigan Oakland County, Michigan -Demographics:As of the 2010 Census, there were 1,202,362 people, 471,115 households, and 315,175 families residing in the county. The population density as of the 2000 census was 1,369 people per square mile . There were 492,006 housing units at an average density of 564 per square mile...	$61,907
61	Orange County, California Orange County, California Orange County is a county in the U.S. state of California. Its county seat is Santa Ana. As of the 2010 census, its population was 3,010,232, up from 2,846,293 at the 2000 census, making it the third most populous county in California, behind Los Angeles County and San Diego County...	$61,899
62	Dakota County, Minnesota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	$61,863
63	Anne Arundel County, Maryland Anne Arundel County, Maryland Anne Arundel County is a county located in the U.S. state of Maryland. It is named for Anne Arundell , a member of the ancient family of Arundells in Cornwall, England and the wife of Cæcilius Calvert, 2nd Baron Baltimore. Its county seat is Annapolis, which is also the capital of the state...	$61,768
64	Middlesex County, New Jersey Middlesex County, New Jersey -Demographics:As of the census of 2000, there were 750,162 people, 265,815 households, and 190,855 families residing in the county. The population density was 2,422 people per square mile . There were 273,637 housing units at an average density of 884 per square mile...	$61,446
65	Aleutians West Census Area, Alaska	$61,406
66	City of Poquoson, Virginia Poquoson, Virginia Poquoson is an independent city located on the Virginia Peninsula, in the Hampton Roads metropolitan area of the U.S. state of Virginia. The population was 12,150 according to the 2010 Census...	$60,920
67	Cherokee County, Georgia Cherokee County, Georgia As of the census of 2000, there were 141,903 people, 49,495 households, and 39,200 families residing in the county. The population density was 335 people per square mile . There were 51,937 housing units at an average density of 123 per square mile...	$60,896
68	Montgomery County, Pennsylvania Montgomery County, Pennsylvania Montgomery County is a county located in the U.S. state of Pennsylvania, in the United States. As of 2010, the population was 799,874, making it the third most populous county in Pennsylvania . The county seat is Norristown.The county was created on September 10, 1784, out of land originally part...	$60,829
69	Middlesex County, Massachusetts Middlesex County, Massachusetts -National protected areas:* Assabet River National Wildlife Refuge* Great Meadows National Wildlife Refuge* Longfellow National Historic Site* Lowell National Historical Park* Minute Man National Historical Park* Oxbow National Wildlife Refuge...	$60,821
70	City of Manassas Park, Virginia	$60,794
71	Williamson County, Texas Williamson County, Texas Williamson County is a county located on both the Edwards Plateau to the west, consisting of rocky terrain and hills, and Blackland Prairies in the east consising of rich, fertile farming land, The two areas are roughly bisected by Interstate 35...	$60,642
72	Gwinnett County, Georgia Gwinnett County, Georgia , Gwinnett County had a population of 805,321. The racial and ethnic composition of the population was 53.3% white , 23.6% black , 2.7% Korean, 2.6% Asian Indian, 2.0% Vietnamese, 3.3% other Asian, 0.1% Pacific Islander, 8.8% some other race and 3.1% from two or more races...	$60,537
73	City of Manassas, Virginia Manassas, Virginia The City of Manassas is an independent city surrounded by Prince William County and the independent city of Manassas Park in the Commonwealth of Virginia in the United States. Its population was 37,821 as of 2010. Manassas also surrounds the county seat for Prince William County but that county...	$60,409
74	Frederick County, Maryland Frederick County, Maryland Frederick County is a county located in the western part of the U.S. state of Maryland, bordering the southern border of Pennsylvania and the northeastern border of Virginia. As of the 2010 Census, the population was 233,385....	$60,276
75	Geauga County, Ohio Geauga County, Ohio Geauga County is a county located in the state of Ohio, United States. As of the 2010 census, the population was 93,389. It is named for a Native American word meaning "raccoon". The county seat is Chardon...	$60,200
76	Carroll County, Maryland Carroll County, Maryland Carroll County is a county located in the U.S. state of Maryland. In 2010, its population was 167,134. It was named for Charles Carroll of Carrollton , signer of the American Declaration of Independence. Its county seat is Westminster....	$60,021
77	Bucks County, Pennsylvania Bucks County, Pennsylvania - Industry and commerce :The boroughs of Bristol and Morrisville were prominent industrial centers along the Northeast Corridor during World War II. Suburban development accelerated in Lower Bucks in the 1950s with the opening of Levittown, Pennsylvania, the second such "Levittown" designed by...	$59,727
78	Ventura County, California Ventura County, California Ventura County is a county in the southern part of the U.S. state of California. It is located on California's Pacific coast. It is often referred to as the Gold Coast, and has a reputation of being one of the safest populated places and one of the most affluent places in the country...	$59,666
79	Pitkin County, Colorado Pitkin County, Colorado Pitkin County is one of the 64 counties of the State of Colorado of the United States. The county is named in honor of the late Colorado Governor Frederick Walker Pitkin. The county population was 14,872 at U.S. Census 2000. The county seat is Aspen...	$59,375
80	Kane County, Illinois Kane County, Illinois Kane County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 515,269, which is an increase of 27.5% from 404,119 in 2000. Its county seat is Geneva, and its largest city is Aurora.- Geography :...	$59,351
81	Hanover County, Virginia Hanover County, Virginia As of the census of 2000, there were 86,320 people, 31,121 households, and 24,461 families residing in the county. The population density was 183 people per square mile . There were 32,196 housing units at an average density of 68 per square mile...	$59,223
82	Middlesex County, Connecticut Middlesex County, Connecticut Middlesex County is a county located in the south central part of the U.S. state of Connecticut. It was created in 1785 from portions of Hartford and New London counties. As of 2010, the population was 165,676....	$59,175
83	Tolland County, Connecticut Tolland County, Connecticut Tolland County is a county located in the northeastern part of Connecticut. As of 2010, the population was 152,691.Counties in Connecticut have no governmental function: all legal power is vested in the state, city, and town governments...	$59,044
84	Burlington County, New Jersey Burlington County, New Jersey There were 154,371 households out of which 34.30% had children under the age of 18 living with them, 57.70% were married couples living together, 10.90% had a female householder with no husband present, and 27.70% were non-families. 22.90% of all households were made up of individuals and 8.50% had...	$58,608
85	Chesterfield County, Virginia Chesterfield County, Virginia Chesterfield County is a county located in the Commonwealth of Virginia, a state of the United States. In 2010, its population was estimated to be 316,236. Chesterfield County is now the fourth-largest municipality in Virginia . Its county seat is Chesterfield...	$58,537
86	Cobb County, Georgia Cobb County, Georgia Cobb County is a county located in the U.S. state of Georgia. Its county seat and largest city is Marietta, which is located in the center of the county. The county was named for Thomas Willis Cobb, who in the early 19th century was a United States representative and senator from Georgia...	$58,289
87	Denton County, Texas Denton County, Texas Denton County is a county located in the U.S. state of Texas. In 2000, its population was 432,976; in 2009 the estimated population had reached 628,300. Part of the Dallas – Fort Worth Metroplex, it is one of the fastest-growing counties in the United States. The county seat is Denton. The county...	$58,216
88	Rockingham County, New Hampshire Rockingham County, New Hampshire -Demographics:As of the census of 2000, there were 277,359 people, 104,529 households, and 74,320 families residing in the county. The population density was 399 people per square mile . There were 113,023 housing units at an average density of 163 per square mile...	$58,150
89	York County, Virginia York County, Virginia York County is a county located on the north side of the Virginia Peninsula in the Hampton Roads metropolitan area of the Commonwealth of Virginia, a state of the United States. Situated on the York River and many tributaries, the county seat is the unincorporated town of Yorktown...	$57,956
90	Warren County, Ohio Warren County, Ohio Warren County is a county located in the state of Ohio, United States. The population was 212,693 at the 2010 census. Its county seat is Lebanon. Warren County was erected May 1, 1803, from Hamilton County, and named for Dr...	$57,952
91	Anoka County, Minnesota Anoka County, Minnesota Anoka County is the fourth-most populous county in the U.S. state of Minnesota. The county is bordered by the counties of Isanti on the north, Chisago and Washington on the east, Hennepin and Ramsey on the south, Sherburne on the west, and the Mississippi River on the southwest.As of 2010, Anoka...	$57,754
92	Placer County, California Placer County, California Placer County is a county located in both the Sacramento Valley and Sierra Nevada regions of the U.S. state of California, in what is known as the Gold Country. It stretches from the suburbs of Sacramento to Lake Tahoe and the Nevada border. Because of the expansion of the Greater Sacramento,...	$57,535
93	Spotsylvania County, Virginia Spotsylvania County, Virginia As of the census of 2000, there were 90,395 people, 31,308 households, and 24,639 families residing in the county. The population density was 226 people per square mile . There were 33,329 housing units at an average density of 83 per square mile...	$57,525
94	San Benito County, California San Benito County, California San Benito County is a county located in the Coast Range Mountains of the U.S. state of California, south of San Jose. As of 2010 the population was 55,269. The county seat is Hollister, which includes nearly two-thirds of the county's population. El Camino Real passes through the county and...	$57,469
95	Jefferson County, Colorado Jefferson County, Colorado Jefferson County , whose slogan is the "Gateway to the Rocky Mountains", is the fourth most populous of the 64 counties of the State of Colorado of the United States. Located along the Front Range of the Rocky Mountains, Jefferson County is adjacent to the west side of the state capital, Denver....	$57,339
96	Henry County, Georgia Henry County, Georgia Henry County is a growing suburban county located in the U.S. state of Georgia. As of the 2000 census, the population was 119,341. As of 2010, the county's population swelled to 203,922, up 70.9% from the previous census and becoming Georgia's 8th most populous county and the 10th fastest growing...	$57,309
97	St. Charles County, Missouri	$57,258
98	Harford County, Maryland Harford County, Maryland Harford County is a county in the U.S. state of Maryland. In 2010, its population was 244,826. Its county seat is Bel Air. Harford County forms part of the Baltimore-Washington Metropolitan Area.-History:...	$57,234
99	Queen Anne's County, Maryland Queen Anne's County, Maryland Queen Anne's County is a county located on the Eastern Shore of the U.S. state of Maryland.As of 2010, the population was 47,798. Its county seat and most populous municipality is Centreville. The census-designated place of Stevensville is the county's most populous place...	$57,037
100	Washington County, Wisconsin	$57,033

Average per capita income 2009

Number of counties by state in the top 20: New Jersey 4; California 3; New York 2; Virginia 1 county, 1 independent city, and 1 statistical unit comprising a county and two independent cities; Colorado, Connecticut, Florida, Idaho, Maryland, Texas, South Dakota, and Wyoming 1 each.

Of the 20 counties, 7 are part of the New York Metropolitan Area

New York metropolitan area

The New York metropolitan area, also known as Greater New York, or the Tri-State area, is the region that composes of New York City and the surrounding region...

, 4 are part of the Washington Metropolitan Area

Washington Metropolitan Area

The Washington Metropolitan Area is the metropolitan area centered on Washington, D.C., the capital of the United States. The area includes all of the federal district and parts of the U.S...

, and 3 are part of the San Francisco Bay Area

San Francisco Bay Area

The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

. By Census region, 7 counties are located in the Northeast

Northeastern United States

The Northeastern United States is a region of the United States as defined by the United States Census Bureau.-Composition:The region comprises nine states: the New England states of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont; and the Mid-Atlantic states of New...

, 6 in the South

Southern United States

The Southern United States—commonly referred to as the American South, Dixie, or simply the South—constitutes a large distinctive area in the southeastern and south-central United States...

, and 6 in the West

Western United States

.The Western United States, commonly referred to as the American West or simply "the West," traditionally refers to the region comprising the westernmost states of the United States. Because the U.S. expanded westward after its founding, the meaning of the West has evolved over time...

.

Rank	County	Average Per Capita Income
1	Teton County, Wyoming Teton County, Wyoming Teton County is a county located in the U.S. state of Wyoming. As of 2010, the population was 21,294. Its county seat is Jackson. Teton County contains the affluent Jackson Hole skiing area...	$132,728
2	New York County, New York Manhattan Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...	$120,790
3	Loving County, Texas Loving County, Texas US Census 2000Of the 67 residents, 60 were White, 6 of "some other race", and 1 person of two or more races. There were 7 residents who were Hispanic or Latino of any race...	$99,593
4	Pitkin County, Colorado Pitkin County, Colorado Pitkin County is one of the 64 counties of the State of Colorado of the United States. The county is named in honor of the late Colorado Governor Frederick Walker Pitkin. The county population was 14,872 at U.S. Census 2000. The county seat is Aspen...	$93,465
5	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$91,483
6	Fairfield County, Connecticut Fairfield County, Connecticut Fairfield County is a county located in the southwestern corner of the U.S. state of Connecticut. The county population is 916,829 according to the 2010 Census. There are currently 1,465 people per square mile in the county. It is the most populous county in the State of Connecticut and contains...	$81,576
7	Westchester County, New York Westchester County, New York Westchester County is a county located in the U.S. state of New York. Westchester covers an area of and has a population of 949,113 according to the 2010 Census, residing in 45 municipalities...	$74,878
8	San Mateo County, California San Mateo County, California San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...	$71,753
9	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$71,713
10	City and County of San Francisco, California	$71,342
11	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$70,949
12	City of Alexandria, Virginia Alexandria, Virginia Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...	$70,632
13	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$68,270
14	Fairfax County Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population... , City of Fairfax Fairfax, Virginia The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat.... , and City of Falls Church Falls Church, Virginia The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within... , Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	$67,909
15	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$67,525
16	Bergen County, New Jersey Bergen County, New Jersey Bergen County is the most populous county of the state of New Jersey, United States. As of the 2010 United States Census, its population was 905,116. The county is part of the New York City Metropolitan Area. Its county seat is Hackensack...	$67,125
17	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$66,449
18	Sully County, South Dakota Sully County, South Dakota As of the census of 2000, there were 1,556 people, 630 households, and 442 families residing in the County. The population density was 2 people per square mile . There were 844 housing units at an average density of 1 per square mile...	$64,352
19	Blaine County, Idaho Blaine County, Idaho Blaine County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 21,376. The county seat and largest city is Hailey. The county is home to the Sun Valley ski resort....	$64,207
20	Collier County, Florida Collier County, Florida Collier County is a county located in the U.S. state of Florida. As of 2000, the population was 251,377. The U.S. Census Bureau 2007 estimate for the county is 315,839...	$63,276

Personal per capita income 2005

Number of counties by state in the top 50: California 5, New Jersey 5, Virginia 4 (2 counties, 1 independent city, and one statistical unit comprising a county and two independent cities), Colorado 3, Florida 3, Maryland 3, Massachusetts 3, New York 3, Illinois 2, Pennsylvania 2, Alaska 1, Connecticut 1, District of Columbia 1, Georgia 1, Idaho 1, Kansas 1, Michigan 1, Minnesota 1, Nevada 1, New Mexico 1, South Dakota 1, Tennessee 1, Texas 1, Utah 1, Washington 1, Wisconsin 1, Wyoming 1. Twenty-four states do not have any counties in the top 50.

Rank	County	Personal Per Capita Income
1	New York County, New York Manhattan Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...  (Manhattan)	$147,000
2	Teton County, Wyoming Teton County, Wyoming Teton County is a county located in the U.S. state of Wyoming. As of 2010, the population was 21,294. Its county seat is Jackson. Teton County contains the affluent Jackson Hole skiing area...	$89,028
3	Pitkin County, Colorado Pitkin County, Colorado Pitkin County is one of the 64 counties of the State of Colorado of the United States. The county is named in honor of the late Colorado Governor Frederick Walker Pitkin. The county population was 14,872 at U.S. Census 2000. The county seat is Aspen...	$77,970
4	Loving County, Texas Loving County, Texas US Census 2000Of the 67 residents, 60 were White, 6 of "some other race", and 1 person of two or more races. There were 7 residents who were Hispanic or Latino of any race...	$77,787
5	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$75,884
6	Fairfield County, Connecticut Fairfield County, Connecticut Fairfield County is a county located in the southwestern corner of the U.S. state of Connecticut. The county population is 916,829 according to the 2010 Census. There are currently 1,465 people per square mile in the county. It is the most populous county in the State of Connecticut and contains...	$67,269
7	City and County of San Francisco, California	$62,614
8	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$62,583
9	Westchester County, New York Westchester County, New York Westchester County is a county located in the U.S. state of New York. Westchester covers an area of and has a population of 949,113 according to the 2010 Census, residing in 45 municipalities...	$62,045
10	City of Alexandria, Virginia Alexandria, Virginia Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...	$61,147
11	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$61,039
12	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$60,357
13	Fairfax County Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population... , Fairfax Fairfax, Virginia The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat.... , and Falls Church, Virginia Falls Church, Virginia The City of Falls Church is an independent city in Virginia, United States, in the Washington Metropolitan Area. The city population was 12,332 in 2010, up from 10,377 in 2000. Taking its name from The Falls Church, an 18th-century Anglican parish, Falls Church gained township status within...	$60,289
14	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$59,953
15	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$59,389
16	San Mateo County, California San Mateo County, California San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...	$59,213
17	Bergen County, New Jersey Bergen County, New Jersey Bergen County is the most populous county of the state of New Jersey, United States. As of the 2010 United States Census, its population was 905,116. The county is part of the New York City Metropolitan Area. Its county seat is Hackensack...	$56,725
18	Town and County of Nantucket, Massachusetts Nantucket, Massachusetts Nantucket is an island south of Cape Cod, Massachusetts, in the United States. Together with the small islands of Tuckernuck and Muskeget, it constitutes the town of Nantucket, Massachusetts, and the coterminous Nantucket County, which are consolidated. Part of the town is designated the Nantucket...	$56,092
19	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$54,941
20	Montgomery County, Pennsylvania Montgomery County, Pennsylvania Montgomery County is a county located in the U.S. state of Pennsylvania, in the United States. As of 2010, the population was 799,874, making it the third most populous county in Pennsylvania . The county seat is Norristown.The county was created on September 10, 1784, out of land originally part...	$54,293
21	Los Alamos County, New Mexico Los Alamos County, New Mexico -2010:Whereas according to the 2010 U.S. Census Bureau:*87.8% White*0.6% Black*0.8% Native American*6.0% Asian*0.0% Native Hawaiian or Pacific Islander*2.6% Two or more races*2.2% Other races*14.7% Hispanic or Latino -2000:...	$54,134
22	Norfolk County, Massachusetts Norfolk County, Massachusetts -National protected areas:* Adams National Historical Park* Boston Harbor Islands National Recreation Area * Frederick Law Olmsted National Historic Site* John Fitzgerald Kennedy National Historic Site-Demographics:...	$53,278
23	Washington, D.C. (federal district) Washington, D.C. Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....	$52,811
24	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$52,580
25	Ozaukee County, Wisconsin	$52,490
26	Oakland County, Michigan Oakland County, Michigan -Demographics:As of the 2010 Census, there were 1,202,362 people, 471,115 households, and 315,175 families residing in the county. The population density as of the 2000 census was 1,369 people per square mile . There were 492,006 housing units at an average density of 564 per square mile...	$52,274
27	Blaine County, Idaho Blaine County, Idaho Blaine County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 21,376. The county seat and largest city is Hailey. The county is home to the Sun Valley ski resort....	$52,245
28	Goochland County, Virginia Goochland County, Virginia Goochland County is a county located in the Commonwealth of Virginia. As of 2010, the population was 21,717. Its county seat is Goochland. It is located in the Richmond-Petersburg region and is a portion of the Richmond Metropolitan Statistical Area ....	$52,212
29	Middlesex County, Massachusetts Middlesex County, Massachusetts -National protected areas:* Assabet River National Wildlife Refuge* Great Meadows National Wildlife Refuge* Longfellow National Historic Site* Lowell National Historical Park* Minute Man National Historical Park* Oxbow National Wildlife Refuge...	$51,869
30	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$51,112
31	Talbot County, Maryland Talbot County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*81.4% White*12.8% Black*0.2% Native American*1.2% Asian*0.1% Native Hawaiian or Pacific Islander*1.6% Two or more races*2.7% Other races*5.5% Hispanic or Latino -2000:...	$50,872
32	Chester County, Pennsylvania Chester County, Pennsylvania -State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...	$50,787
33	Summit County, Utah Summit County, Utah Summit County is a county located in the U.S. state of Utah, occupying a rugged and mountainous area. In 2010 its population was 36,324. It is part of the Salt Lake City Metropolitan Statistical Area as well as the Salt Lake City–Ogden–Clearfield Combined Statistical Area. The county is...	$50,542
34	Palm Beach County, Florida Palm Beach County, Florida Palm Beach County is the largest county in the state of Florida in total area, and third in population. As of 2010, the county's estimated population was 1,320,134, making it the twenty-eighth most populous in the United States...	$50,371
35	Martin County, Florida Martin County, Florida Martin County is a county in the U.S. state of Florida. As of 2000, the population was 126,731. The U.S. Census Bureau 2008 estimate for the county is 138,660. Its county seat is Stuart, Florida.- History :...	$49,992
36	Hennepin County, Minnesota Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	$49,566
37	Collier County, Florida Collier County, Florida Collier County is a county located in the U.S. state of Florida. As of 2000, the population was 251,377. The U.S. Census Bureau 2007 estimate for the county is 315,839...	$49,492
38	Fulton County, Georgia Fulton County, Georgia Fulton County is a county located in the U.S. state of Georgia. Its county seat is Atlanta, the state capital since 1868 and the principal county of the Atlanta metropolitan area...	$49,291
39	Sully County, South Dakota Sully County, South Dakota As of the census of 2000, there were 1,556 people, 630 households, and 442 families residing in the County. The population density was 2 people per square mile . There were 844 housing units at an average density of 1 per square mile...	$49,119
40	Lake County, Illinois Lake County, Illinois Lake County is a county in the northeastern corner of the state of Illinois, on the shore of Lake Michigan. According to the 2010 census, it has a population of 703,462, which is an increase of 9.2% from 644,356 in 2000. Its county seat is Waukegan. The county is part of the Chicago metropolitan area...	$48,906
41	Contra Costa County, California Contra Costa County, California Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...	$48,618
42	Monmouth County, New Jersey Monmouth County, New Jersey Monmouth County is a county located in the U.S. state of New Jersey, within the New York metropolitan area. As of the 2010 Census, the population was 630,380, up from 615,301 at the 2000 census. Its county seat is Freehold Borough. The most populous municipality is Middletown Township with...	$48,506
43	DuPage County, Illinois DuPage County, Illinois As of the 2010 Census, the population of the county was 916,924, White Americans made up 77.9% of Dupage County's population; non-Hispanic whites represented 70.5% of the population. Black Americans made up 4.6% of the population. Native Americans made up 0.3% of Dupage County's population...	$48,472
44	King County, Washington King County, Washington King County is a county located in the U.S. state of Washington. The population in the 2010 census was 1,931,249. King is the most populous county in Washington, and the 14th most populous in the United States....	$48,216
45	Clear Creek County, Colorado Clear Creek County, Colorado Clear Creek County is one of the 64 counties of the state of Colorado of the United States. The county population was 9,322 at U.S. Census 2000. The county seat is Georgetown...	$48,150
46	Johnson County, Kansas Johnson County, Kansas Johnson County is a county located in northeast Kansas, in the central United States. The county is largely suburban, being part of the Kansas City metropolitan area, and containing many of its affluent southwestern suburbs. As of the 2010 census, the county population was 544,179. Its county...	$48,123
47	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$47,712
48	City and County of Denver, Colorado	$47,652
49	Denali Borough, Alaska Denali Borough, Alaska -Demographics:As of the census of 2000, there were 1,893 people, 785 households, and 452 families residing in the borough. The population density was 0 people per square mile . There were 1,351 housing units at an average density of 0 per square mile...	$47,551
50	Douglas County, Nevada Douglas County, Nevada Douglas County is a county located in the northwestern part of the U.S. state of Nevada. As of 2000, the population was 41,259. As of 2010, the population was estimated to be 46,997.- History :...	$47,303

Per capita income 2000

Number of counties by state in the top 100: Colorado 10, Virginia 7 counties plus 3 independent cities, New Jersey 9, California 8, Florida 6, New York 6, Georgia 4, Maryland 4, Minnesota 4, Connecticut 3, Massachusetts 3, Michigan 3, Pennsylvania 3, Texas 3, Illinois 2, North Carolina 2, Ohio 2, Washington 2, Wisconsin 2, Idaho 1, Alaska 1, Alabama 1, District of Columbia 1, Indiana 1, Kansas 1, Missouri 1, Nevada 1, New Hampshire 1, New Mexico 1, Rhode Island 1, Tennessee 1, Utah 1, Wyoming 1. Eighteen states do not have any counties in the top 100.
United States of America per capita average: $21,587

Rank	County	Per Capita Income
1	Marin County, California Marin County, California Marin County is a county located in the North San Francisco Bay Area of the U.S. state of California, across the Golden Gate Bridge from San Francisco. As of 2010, the population was 252,409. The county seat is San Rafael and the largest employer is the county government. Marin County is well...	$44,962
2	New York County, New York Manhattan Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...  (Manhattan)	$42,922
3	City of Falls Church, Virginia	$41,052
4	Pitkin County, Colorado Pitkin County, Colorado Pitkin County is one of the 64 counties of the State of Colorado of the United States. The county is named in honor of the late Colorado Governor Frederick Walker Pitkin. The county population was 14,872 at U.S. Census 2000. The county seat is Aspen...	$40,811
5	Fairfield County, Connecticut Fairfield County, Connecticut Fairfield County is a county located in the southwestern corner of the U.S. state of Connecticut. The county population is 916,829 according to the 2010 Census. There are currently 1,465 people per square mile in the county. It is the most populous county in the State of Connecticut and contains...	$38,350
6	Teton County, Wyoming Teton County, Wyoming Teton County is a county located in the U.S. state of Wyoming. As of 2010, the population was 21,294. Its county seat is Jackson. Teton County contains the affluent Jackson Hole skiing area...	$38,260
7	Somerset County, New Jersey Somerset County, New Jersey Somerset County is a county located in the U.S. state of New Jersey. In 2010, the population was 323,444. It is part of the New York Metropolitan Area. Its county seat is Somerville....	$37,970
8	Arlington County, Virginia Arlington County, Virginia Arlington County is a county in the Commonwealth of Virginia. The land that became Arlington was originally donated by Virginia to the United States government to form part of the new federal capital district. On February 27, 1801, the United States Congress organized the area as a subdivision of...	$37,706
9	City of Alexandria, Virginia Alexandria, Virginia Alexandria is an independent city in the Commonwealth of Virginia. As of 2009, the city had a total population of 139,966. Located along the Western bank of the Potomac River, Alexandria is approximately six miles south of downtown Washington, D.C.Like the rest of northern Virginia, as well as...	$37,645
10	Morris County, New Jersey Morris County, New Jersey Morris County is a county located in the U.S. state of New Jersey, about west of New York City. According to the United States 2010 Census, the population was 492,276. It is part of the New York Metropolitan Area. Its county seat is Morristown....	$36,964
11	Fairfax County, Virginia Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	$36,888
12	Westchester County, New York Westchester County, New York Westchester County is a county located in the U.S. state of New York. Westchester covers an area of and has a population of 949,113 according to the 2010 Census, residing in 45 municipalities...	$36,726
13	Hunterdon County, New Jersey Hunterdon County, New Jersey Hunterdon County is a county located in the western section of the U.S. state of New Jersey. As of the 2010 United States Census, the population was 128,349. It is part of the New York Metropolitan Area. Its county seat is Flemington....	$36,370
14	San Mateo County, California San Mateo County, California San Mateo County is a county located in the San Francisco Bay Area of the U.S. state of California. It covers most of the San Francisco Peninsula just south of San Francisco, and north of Santa Clara County. San Francisco International Airport is located at the northern end of the county, and...	$36,045
15	Montgomery County, Maryland Montgomery County, Maryland Montgomery County is a county in the U.S. state of Maryland, situated just to the north of Washington, D.C., and southwest of the city of Baltimore. It is one of the most affluent counties in the United States, and has the highest percentage of residents over 25 years of age who hold post-graduate...	$35,684
16	San Miguel County, Colorado San Miguel County, Colorado San Miguel County is one of the 64 counties of the state of Colorado of the United States. The county is named for the San Miguel River. The county population was 6,594 at U.S. Census 2000...	$35,329
17	Douglas County, Colorado Douglas County, Colorado Douglas County is the eighth most populous of the 64 counties of the state of Colorado, in the United States. The county is located midway between Colorado's two largest cities: Denver and Colorado Springs...	$34,848
18	Los Alamos County, New Mexico Los Alamos County, New Mexico -2010:Whereas according to the 2010 U.S. Census Bureau:*87.8% White*0.6% Black*0.8% Native American*6.0% Asian*0.0% Native Hawaiian or Pacific Islander*2.6% Two or more races*2.2% Other races*14.7% Hispanic or Latino -2000:...	$34,646
19	City and County of San Francisco, California	$34,556
20	Summit County, Utah Summit County, Utah Summit County is a county located in the U.S. state of Utah, occupying a rugged and mountainous area. In 2010 its population was 36,324. It is part of the Salt Lake City Metropolitan Statistical Area as well as the Salt Lake City–Ogden–Clearfield Combined Statistical Area. The county is...	$33,767
21	Bergen County, New Jersey Bergen County, New Jersey Bergen County is the most populous county of the state of New Jersey, United States. As of the 2010 United States Census, its population was 905,116. The county is part of the New York City Metropolitan Area. Its county seat is Hackensack...	$33,638
22	Loudoun County, Virginia Loudoun County, Virginia Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of the 2010 U.S. Census, the county is estimated to be home to 312,311 people, an 84 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth...	$33,530
23	Collin County, Texas Collin County, Texas As of the census of 2000, there were 491,675 people, 181,970 households, and 132,292 families residing in the county. The population density was 580 people per square mile . There were 194,892 housing units at an average density of 230 per square mile...	$33,345
24	Hamilton County, Indiana Hamilton County, Indiana Hamilton County is a county located in the U.S. state of Indiana. Census 2010 recorded a population of 274,569. The county seat is Noblesville....	$33,109
25	Santa Clara County, California Santa Clara County, California Santa Clara County is a county located at the southern end of the San Francisco Bay Area in the U.S. state of California. As of 2010 it had a population of 1,781,642. The county seat is San Jose. The highly urbanized Santa Clara Valley within Santa Clara County is also known as Silicon Valley...	$32,795
26	Oakland County, Michigan Oakland County, Michigan -Demographics:As of the 2010 Census, there were 1,202,362 people, 471,115 households, and 315,175 families residing in the county. The population density as of the 2000 census was 1,369 people per square mile . There were 492,006 housing units at an average density of 564 per square mile...	$32,534
27	Williamson County, Tennessee Williamson County, Tennessee Williamson County is a county in the U.S. state of Tennessee. As of 2010 US Census, the population was 183,182. The County's seat is Franklin, and it is part of the Nashville-Davidson–Murfreesboro–Franklin Metropolitan Statistical Area. The county is named after Hugh Williamson, a...	$32,496
28	Norfolk County, Massachusetts Norfolk County, Massachusetts -National protected areas:* Adams National Historical Park* Boston Harbor Islands National Recreation Area * Frederick Law Olmsted National Historic Site* John Fitzgerald Kennedy National Historic Site-Demographics:...	$32,484
29	Howard County, Maryland Howard County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*62.2% White*17.5% Black*0.3% Native American*14.4% Asian*0.0% Native Hawaiian or Pacific Islander*3.6% Two or more races*2.0% Other races*5.8% Hispanic or Latino -2000:...	$32,402
30	Nassau County, New York Nassau County, New York Nassau County is a suburban county on Long Island, east of New York City in the U.S. state of New York, within the New York Metropolitan Area. As of the 2010 census, the population was 1,339,532...	$32,151
31	Lake County, Illinois Lake County, Illinois Lake County is a county in the northeastern corner of the state of Illinois, on the shore of Lake Michigan. According to the 2010 census, it has a population of 703,462, which is an increase of 9.2% from 644,356 in 2000. Its county seat is Waukegan. The county is part of the Chicago metropolitan area...	$32,102
32	Eagle County, Colorado Eagle County, Colorado Eagle County is the thirteenth most populous of the 64 counties of the State of Colorado in the United States. The county is named for the Eagle River. The county population was 41,659 at U.S. Census 2000. The county seat is the Town of Eagle...	$32,011
33	Ozaukee County, Wisconsin	$31,947
34	Chester County, Pennsylvania Chester County, Pennsylvania -State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...	$31,627
35	Delaware County, Ohio Delaware County, Ohio Delaware County is a fast-growing suburban county in the state of Ohio, United States, within the Columbus, Ohio Metropolitan Statistical Area. According to the United States Census Bureau's 2004 population estimates, Delaware County's population of 142,503 made it the fastest growing county in...	$31,600
36	Blaine County, Idaho Blaine County, Idaho Blaine County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 21,376. The county seat and largest city is Hailey. The county is home to the Sun Valley ski resort....	$31,346
37	DuPage County, Illinois DuPage County, Illinois As of the 2010 Census, the population of the county was 916,924, White Americans made up 77.9% of Dupage County's population; non-Hispanic whites represented 70.5% of the population. Black Americans made up 4.6% of the population. Native Americans made up 0.3% of Dupage County's population...	$31,315
38	Town and County of Nantucket, Massachusetts Nantucket, Massachusetts Nantucket is an island south of Cape Cod, Massachusetts, in the United States. Together with the small islands of Tuckernuck and Muskeget, it constitutes the town of Nantucket, Massachusetts, and the coterminous Nantucket County, which are consolidated. Part of the town is designated the Nantucket...	$31,314
39	City of Fairfax, Virginia Fairfax, Virginia The City of Fairfax is an independent city forming an enclave within the confines of Fairfax County, in the Commonwealth of Virginia in the United States. Although politically independent of the surrounding county, the City is nevertheless the county seat....	$31,247
40	Middlesex County, Massachusetts Middlesex County, Massachusetts -National protected areas:* Assabet River National Wildlife Refuge* Great Meadows National Wildlife Refuge* Longfellow National Historic Site* Lowell National Historical Park* Minute Man National Historical Park* Oxbow National Wildlife Refuge...	$31,199
41	Collier County, Florida Collier County, Florida Collier County is a county located in the U.S. state of Florida. As of 2000, the population was 251,377. The U.S. Census Bureau 2007 estimate for the county is 315,839...	$31,195
42	Monmouth County, New Jersey Monmouth County, New Jersey Monmouth County is a county located in the U.S. state of New Jersey, within the New York metropolitan area. As of the 2010 Census, the population was 630,380, up from 615,301 at the 2000 census. Its county seat is Freehold Borough. The most populous municipality is Middletown Township with...	$31,149
43	Johnson County, Kansas Johnson County, Kansas Johnson County is a county located in northeast Kansas, in the central United States. The county is largely suburban, being part of the Kansas City metropolitan area, and containing many of its affluent southwestern suburbs. As of the 2010 census, the county population was 544,179. Its county...	$30,919
44	Montgomery County, Pennsylvania Montgomery County, Pennsylvania Montgomery County is a county located in the U.S. state of Pennsylvania, in the United States. As of 2010, the population was 799,874, making it the third most populous county in Pennsylvania . The county seat is Norristown.The county was created on September 10, 1784, out of land originally part...	$30,898
45	Contra Costa County, California Contra Costa County, California Contra Costa County is a primarily suburban county in the San Francisco Bay Area of the U.S. state of California. As of the 2010 census, it had a population of 1,049,025...	$30,615
46	San Juan County, Washington	$30,603
47	Putnam County, New York Putnam County, New York Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...	$30,127
48	Fulton County, Georgia Fulton County, Georgia Fulton County is a county located in the U.S. state of Georgia. Its county seat is Atlanta, the state capital since 1868 and the principal county of the Atlanta metropolitan area...	$30,003
49	Ventura County, California Ventura County, California Ventura County is a county in the southern part of the U.S. state of California. It is located on California's Pacific coast. It is often referred to as the Gold Coast, and has a reputation of being one of the safest populated places and one of the most affluent places in the country...	$29,634
50	Martin County, Florida Martin County, Florida Martin County is a county in the U.S. state of Florida. As of 2000, the population was 126,731. The U.S. Census Bureau 2008 estimate for the county is 138,660. Its county seat is Stuart, Florida.- History :...	$29,584
51	King County, Washington King County, Washington King County is a county located in the U.S. state of Washington. The population in the 2010 census was 1,931,249. King is the most populous county in Washington, and the 14th most populous in the United States....	$29,521
52	Fayette County, Georgia Fayette County, Georgia Fayette County is a county located in the U.S. state of Georgia. As of 2000, the population was 91,263. The 2007 Census Estimate shows a population of 106,144. The county seat is Fayetteville....	$29,464
53	James City County, Virginia James City County, Virginia James City County is a county located on the Virginia Peninsula in the Hampton Roads metropolitan area of the Commonwealth of Virginia, a state of the United States. Its population was 67,009 , and it is often associated with Williamsburg, an independent city, and Jamestown which is within the...	$29,256
54	Waukesha County, Wisconsin Waukesha County, Wisconsin Waukesha County is a county in the U.S. state of Wisconsin. As of 2008, the population was 380,629. Its county seat is Waukesha.-History:The part of Wisconsin that Waukesha County now occupies was a part of Michigan when Milwaukee County was organized in September 1834. On July 4, 1836, the...	$29,164
55	Forsyth County, Georgia Forsyth County, Georgia Forsyth County is a county located in the U.S. state of Georgia. The county seat is Cumming, Georgia. Forsyth County is a part of the Atlanta metropolitan area...	$29,114
56	Goochland County, Virginia Goochland County, Virginia Goochland County is a county located in the Commonwealth of Virginia. As of 2010, the population was 21,717. Its county seat is Goochland. It is located in the Richmond-Petersburg region and is a portion of the Richmond Metropolitan Statistical Area ....	$29,105
57	Boulder County, Colorado Boulder County, Colorado Boulder County is the sixth most populous of the 64 counties of the state of Colorado of the United States. The county seat is Boulder. The most populous municipality in the county and the county seat is the City of Boulder...	$28,976
58	Albemarle County, Virginia Albemarle County, Virginia As of the census of 2000, there were 79,236 people, 31,876 households, and 21,070 families residing in the county. The population density was 110 people per square mile . There were 33,720 housing units at an average density of 47 per square mile...	$28,852
59	Palm Beach County, Florida Palm Beach County, Florida Palm Beach County is the largest county in the state of Florida in total area, and third in population. As of 2010, the county's estimated population was 1,320,134, making it the twenty-eighth most populous in the United States...	$28,801
60	Routt County, Colorado Routt County, Colorado Routt County is the 15th most extensive of the 64 counties of the state of Colorado of the United States. The county population was 19,690 at U.S. Census 2000. The county seat is Steamboat Springs.- History :...	$28,792
61	Hennepin County, Minnesota Hennepin County, Minnesota Hennepin County is a county located in the U.S. state of Minnesota, named in honor of the 17th-century explorer Father Louis Hennepin. As of 2010 the population was 1,152,425. Its county seat is Minneapolis. It is by far the most populous county in Minnesota; more than one in five Minnesotans live...	$28,789
62	Fauquier County, Virginia Fauquier County, Virginia As of the census of 2000, there were 55,139 people, 19,842 households, and 15,139 families residing in the county. The population density was 85 people per square mile . There were 21,046 housing units at an average density of 32 per square mile...	$28,757
63	Summit County, Colorado Summit County, Colorado Summit County is the 19th most populous of the 64 counties of the state of Colorado of the United States. The county population was 23,538 at U.S. Census 2000. The county seat is Breckenridge...	$28,676
64	St. Johns County, Florida St. Johns County, Florida St. Johns County is a county located in northeastern Florida. As of the 2010 census, the population was 190,039. The county seat is St. Augustine. Due to the inclusion of Ponte Vedra Beach, it is one of the highest-income counties in the United States....	$28,674
65	Washington, D.C. Washington, D.C. Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....	$28,659
66	Rockwall County, Texas Rockwall County, Texas As of the census of 2000, there were 43,080 people, 14,530 households, and 11,972 families residing in the county. The population density was 334 people per square mile . There were 15,351 housing units at an average density of 119 per square mile...	$28,573
67	Carver County, Minnesota Carver County, Minnesota As of the census of 2000, there were 70,205 people, 24,356 households, and 18,778 families residing in the county. The population density was 197 people per square mile . There were 24,883 housing units at an average density of 70 per square mile...	$28,486
68	Litchfield County, Connecticut Litchfield County, Connecticut Litchfield County is a county located in the northwestern corner of the U.S. state of Connecticut. Litchfield County has the lowest population density of any county in Connecticut but is geographically the state's largest county. As of 2010 the population was 189,927...	$28,408
69	Sarasota County, Florida Sarasota County, Florida Sarasota County is a county located in the U.S. state of Florida. The U.S. Census Bureau 2008 estimate for the county was 372,057. Its county seat is Sarasota, Florida....	$28,326
70	Middlesex County, Connecticut Middlesex County, Connecticut Middlesex County is a county located in the south central part of the U.S. state of Connecticut. It was created in 1785 from portions of Hartford and New London counties. As of 2010, the population was 165,676....	$28,251
71	Talbot County, Maryland Talbot County, Maryland -2010:Whereas according to the 2010 U.S. Census Bureau:*81.4% White*12.8% Black*0.2% Native American*1.2% Asian*0.1% Native Hawaiian or Pacific Islander*1.6% Two or more races*2.7% Other races*5.5% Hispanic or Latino -2000:...	$28,164
72	Clear Creek County, Colorado Clear Creek County, Colorado Clear Creek County is one of the 64 counties of the state of Colorado of the United States. The county population was 9,322 at U.S. Census 2000. The county seat is Georgetown...	$28,160
73	Washington County, Minnesota Washington County, Minnesota Washington County is a county established in 1849 in the U.S. state of Minnesota. As of 2010, the population was 238,136. Its county seat is Stillwater.-History:...	$28,148
74	Arapahoe County, Colorado Arapahoe County, Colorado As of the census of 2000, there were 487,967 people, 190,909 households, and 125,809 families residing in the county. The population density was 608 people per square mile . There were 196,835 housing units at an average density of 245 per square mile...	$28,147
75	Rockland County, New York Rockland County, New York Rockland County is a suburban county 15 miles to the northwest of Manhattan and part of the New York City Metropolitan Area, in the U.S. state of New York. It is the southernmost county in New York west of the Hudson River, and the smallest county in New York outside of New York City. The...	$28,082
76	Livingston County, Michigan Livingston County, Michigan -Demographics:As of the census of 2000, there were 156,951 people, 55,384 households, and 43,531 families residing in the county. The population density was 276 people per square mile . There were 58,919 housing units at an average density of 104 per square mile...	$28,069
77	Jefferson County, Colorado Jefferson County, Colorado Jefferson County , whose slogan is the "Gateway to the Rocky Mountains", is the fourth most populous of the 64 counties of the State of Colorado of the United States. Located along the Front Range of the Rocky Mountains, Jefferson County is adjacent to the west side of the state capital, Denver....	$28,066
78	Placer County, California Placer County, California Placer County is a county located in both the Sacramento Valley and Sierra Nevada regions of the U.S. state of California, in what is known as the Gold Country. It stretches from the suburbs of Sacramento to Lake Tahoe and the Nevada border. Because of the expansion of the Greater Sacramento,...	$27,963
79	Geauga County, Ohio Geauga County, Ohio Geauga County is a county located in the state of Ohio, United States. As of the 2010 census, the population was 93,389. It is named for a Native American word meaning "raccoon". The county seat is Chardon...	$27,944
80	Mercer County, New Jersey Mercer County, New Jersey As of the census of 2000, there were 350,761 people, 125,807 households, and 86,303 families residing in the county. The population density was 1,552 people per square mile . There were 133,280 housing units at an average density of 590 per square mile...	$27,914
81	Cobb County, Georgia Cobb County, Georgia Cobb County is a county located in the U.S. state of Georgia. Its county seat and largest city is Marietta, which is located in the center of the county. The county was named for Thomas Willis Cobb, who in the early 19th century was a United States representative and senator from Georgia...	$27,863
82	St. Louis County, Missouri St. Louis County, Missouri St. Louis County is a county located in the U.S. state of Missouri. Its county seat is Clayton. St. Louis County is part of the St. Louis Metro Area wherein the independent City of St. Louis and its suburbs in St. Louis County, as well as the surrounding counties in both Missouri and Illinois all...	$27,595
83	Anne Arundel County, Maryland Anne Arundel County, Maryland Anne Arundel County is a county located in the U.S. state of Maryland. It is named for Anne Arundell , a member of the ancient family of Arundells in Cornwall, England and the wife of Cæcilius Calvert, 2nd Baron Baltimore. Its county seat is Annapolis, which is also the capital of the state...	$27,578
84	Bucks County, Pennsylvania Bucks County, Pennsylvania - Industry and commerce :The boroughs of Bristol and Morrisville were prominent industrial centers along the Northeast Corridor during World War II. Suburban development accelerated in Lower Bucks in the 1950s with the opening of Levittown, Pennsylvania, the second such "Levittown" designed by...	$27,430
85	Mecklenburg County, North Carolina Mecklenburg County, North Carolina -Air:The county's primary commercial aviation airport is Charlotte Douglas International Airport in Charlotte.- Intercity rail :With twenty-five freight trains a day, Mecklenburg is a freight railroad transportation center, largely due to its place on the NS main line between Washington and Atlanta...	$27,352
86	Douglas County, Nevada Douglas County, Nevada Douglas County is a county located in the northwestern part of the U.S. state of Nevada. As of 2000, the population was 41,259. As of 2010, the population was estimated to be 46,997.- History :...	$27,288
87	Indian River County, Florida Indian River County, Florida Indian River County is a county located in the Treasure Coast region in the U.S. state of Florida. As of 2000, the population was 112,947. The U.S. Census Bureau 2005 estimate for the county is 128,594...	$27,227
88	Shelby County, Alabama Shelby County, Alabama Shelby County is a county of the U.S. state of Alabama and a part of the Birmingham–Hoover–Cullman Combined Statistical Area. It is named in honor of Isaac Shelby, Governor of Kentucky. The county seat of Shelby County is Columbiana. As of 2010 U.S. Census the population was 195,085. Shelby...	$27,176
89	Washtenaw County, Michigan Washtenaw County, Michigan Washtenaw County is a county in the U.S. state of Michigan. As of the 2010 census, the population was 344,791. Its county seat is Ann Arbor. The United States Office of Management and Budget defines the county as part of the Detroit–Warren–Flint Combined Statistical Area...	$27,173
90	Dakota County, Minnesota Dakota County, Minnesota Dakota County is the third most populous county in the U.S. state of Minnesota. The county is bordered by the Minnesota and Mississippi Rivers on the north, and the state of Wisconsin on the east. Dakota County comprises the southeast portion of seven-county Minneapolis-St. Paul, the thirteenth...	$27,008
91	Wake County, North Carolina Wake County, North Carolina Wake County is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 900,993 making it North Carolina's second most populated county...	$27,004
92	Sussex County, New Jersey Sussex County, New Jersey The County of Sussex is the northernmost county in the State of New Jersey. It is part of the New York City Metropolitan Area. As of the 2010 Federal decennial census, 149,265 persons resided in Sussex County...	$26,992
93	Union County, New Jersey Union County, New Jersey Union County is a county located in the U.S. state of New Jersey. As of the 2010 Census, the population was 536,499. It is part of the New York Metropolitan Area. Its county seat is Elizabeth. Union County ranks 93rd among the highest-income counties in the United States. It also ranks 74th in...	$26,992
94	Denton County, Texas Denton County, Texas Denton County is a county located in the U.S. state of Texas. In 2000, its population was 432,976; in 2009 the estimated population had reached 628,300. Part of the Dallas – Fort Worth Metroplex, it is one of the fastest-growing counties in the United States. The county seat is Denton. The county...	$26,895
95	Newport County, Rhode Island Newport County, Rhode Island -National protected areas:* Sachuest Point National Wildlife Refuge* Touro Synagogue National Historic Site-History:Newport County was constituted on June 22, 1703, as one of the two original counties of the Colony of Rhode Island and Providence Plantations. As originally established, Newport...	$26,779
96	City and Borough of Juneau, Alaska Juneau, Alaska The City and Borough of Juneau is a unified municipality located on the Gastineau Channel in the panhandle of the U.S. state of Alaska. It has been the capital of Alaska since 1906, when the government of the then-District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900...	$26,719
97	Alameda County, California Alameda County, California Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...	$26,680
98	Rockingham County, New Hampshire Rockingham County, New Hampshire -Demographics:As of the census of 2000, there were 277,359 people, 104,529 households, and 74,320 families residing in the county. The population density was 399 people per square mile . There were 113,023 housing units at an average density of 163 per square mile...	$26,656
99	Suffolk County, New York Suffolk County, New York Suffolk County is a county located in the U.S. state of New York on the eastern portion of Long Island. As of the 2010 census, the population was 1,493,350. It was named for the county of Suffolk in England, from which its earliest settlers came...	$26,577
100	Middlesex County, New Jersey Middlesex County, New Jersey -Demographics:As of the census of 2000, there were 750,162 people, 265,815 households, and 190,855 families residing in the county. The population density was 2,422 people per square mile . There were 273,637 housing units at an average density of 884 per square mile...	$26,535

Highest-income counties and places by state

For more detailed lists of rankings of counties and places in the individual states, see the following pages:
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• Alabama
  Alabama locations by per capita income
  Alabama has the thirty-eighth highest per capita income in the United States of America, at $18,189 . Its personal per capita income is $26,338 , the fortieth highest in the country. Its median household income is $34,135 , ranked forty-second in the country, and its median family income is...
  
  
• Alaska
  Alaska locations by per capita income
  Alaska has the fourteenth highest per capita income in the United States of America, at $22,660 . Its personal per capita income is $33,568 , the twelfth highest in the country. Its median household income is $51,571 , ranked fourth in the country, and its median family income is $59,036 , the...
  
  
• Arizona
  Arizona locations by per capita income
  Arizona has the twenty-ninth highest per capita income in the United States of America, at $20,275 . Its personal per capita income is $26,838 .-Arizona counties ranked by per capita income:...
  
  
• Arkansas
  Arkansas locations by per capita income
  Arkansas is the forty-eighth richest state in the United States of America, with a per capita income of $16,904 .-Arkansas Places Ranked by Per Capita Income:# Morrison Bluff, Arkansas – $56,436# Prairie Creek, Arkansas – $37,355...
  
  
• California
  California locations by per capita income
  All figures as of the census of 2000 by the United States Census Bureau.California is the thirteenth-richest state in the United States of America, with a per capita income of $22,711 .-California counties ranked by per capita income:...
  
  
• Colorado
  Colorado locations by per capita income
  Colorado is the fifth richest state in the United States of America, with a per capita income of $24,049 and a personal per capita income of $34,283 .-Colorado counties ranked by per capita income:...
  
  
• Connecticut
• Delaware
  Delaware locations by per capita income
  Delaware is the ninth richest state in the United States of America, with a per capita income of $23,305 and a personal per capita income of $32,810 .-Delaware counties ranked by per capita income:...
  
  
• Florida
  Florida locations by per capita income
  Florida has the eighteenth highest per capita income in the United States of America, at $21,557 . Its personal per capita income is $30,446 .-Florida Counties Ranked by Per Capita Income:...
  
  
• Georgia
  Georgia locations by per capita income
  Georgia is the tenth richest state in the United States of America, with a per capita income of US$40,155 .-Georgia places ranked by per capita income:Per capita income is stated in US dollars.# Johns Creek, Georgia – $75,234...
  
  
• Hawaii
  Hawaii locations by per capita income
  Hawai'i has the eighteenth highest per capita income in the United States of America, at $21,525 . Its personal per capita income is $30,913 .- Hawai'i counties ranked by per capita income :...
  
  
• Idaho
  Idaho locations by per capita income
  Idaho is the forty-first richest state in the United States of America, with a per capita income of $17,841 .-Idaho counties ranked by per capita income:...
  
  
• Illinois
  Illinois locations by per capita income
  Illinois is the 11th-wealthiest of the 50 United States, with a per capita income of $23,104 according to the 2000 census.- Illinois counties ranked by per capita income :...
  
  
• Indiana
  Indiana locations by per capita income
  Indiana has the twenty-seventh highest per capita income in the United States of America, at $20,397 . Its personal per capita income is $28,783 .-Indiana counties ranked by per capita income:...
  
  
• Iowa
• Kansas
  Kansas locations by per capita income
  Kansas has the twenty-sixth highest per capita income in the United States, at $20,506 . Its personal per capita income is $29,935 .-Kansas counties ranked by per capita income:...
  
  
• Kentucky
  Kentucky locations by per capita income
  Kentucky is the fortieth richest state in the United States of America, with a per capita income of $18,093 .- Kentucky Places by Per Capita Income :# Mockingbird Valley, Kentucky – $134,745# Glenview, Kentucky – $85,094...
  
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Louisiana Louisiana locations by per capita income Louisiana has the forty-seventh lowest per capita income in the United States of America, at $16,912 . Its personal per capita income is $26,100 .- Louisiana parishes ranked by per capita income :... Maine Maine locations by per capita income Maine has the thirty-fourth highest per capita income in the United States of America. In 2000, the state's average personal per capita income was $19,533... Maryland Maryland locations by per capita income Maryland is the wealthiest state in the United States of America, with a median household income of $69,272 according to the 2010 census. Per capita income was $25,615 in 2000 and personal per capita income was $37,331 in 2003.... Massachusetts Massachusetts locations by per capita income Massachusetts is the third richest state in the United States of America, with a per capita income of $25,952 and a personal per capita income of $39,815... Michigan Michigan locations by per capita income Michigan has the fifteenth highest per capita income in the United States of America at $22,168 .# Barton Hills, Michigan – $110,683# Bloomfield Hills, Michigan – $104,920# Grosse Pointe Shores, Michigan – $97,859... Minnesota Mississippi Mississippi locations by per capita income Mississippi is the poorest state in the United States of America, with a per capita income of $15,853 .- Mississippi Counties Ranked by Per Capita Income :1. Madison County - $32,469 2. DeSoto County - $20,468 3. Rankin County - $20,412... Missouri Missouri locations by per capita income Missouri is the thirtieth richest state in the United States of America, with a per capita income of $19,936 .- Missouri places ranked by per capita income :# Baker, Missouri – $182,000# Huntleigh, Missouri – $104,420... Montana Montana locations by per capita income Montana is the forty-sixth richest state in the United States of America, with a per capita income of $17,151 .-Montana counties ranked by per capita income:... Nebraska Nebraska locations by per capita income Nebraska is the thirty-third richest state in the United States of America, with a per capita income of $19,613 . Nebraska's personal per capita income is $32,276 .- Nebraska counties by per capita income:... Nevada Nevada locations by per capita income Nevada is the sixteenth richest state in the United States of America, with a per capita income of $21,989 and a personal per capita income of $31,266 .... New Hampshire New Hampshire locations by per capita income New Hampshire is the seventh richest state in the United States of America, with a per capita income of $23,844 and a personal per capita income of $34,702 .-New Hampshire counties ranked by per capita income:... New Jersey New Jersey locations by per capita income New Jersey is one of the wealthiest states in the United States of America, with a per capita income of $27,006 and a personal per capita income of $40,427 . Its median household income is $55,146 , ranked first in the country, and its median family income is $65,370 , the second highest in the... New Mexico New Mexico locations by per capita income New Mexico has the fifth lowest per capita income in the United States of America, at $17,261 . Its personal per capita income is $25,541 .- New Mexico counties ranked by per capita income :... New York New York locations by per capita income New York is the sixth richest state in the United States of America, with a per capita income of $40,272.29 . - New York counties ranked by per capita income :... North Carolina North Carolina locations by per capita income North Carolina is the twenty-eighth richest state in the United States of America, with a per capita income of $20,307 .-North Carolina Places Ranked by Per Capita Income:# Rex, North Carolina $148,073# Biltmore Forest, North Carolina $85,044... North Dakota North Dakota locations by per capita income North Dakota is the forty-second richest state in the United States of America, with a per capita income of $17,769 .-North Dakota Locations by Per Capita Income:# Briarwood, North Dakota $57,751# Ayr, North Dakota $55,567...

Oklahoma Oklahoma locations by per capita income Oklahoma is the 37th-richest state in the United States of America, with a per capita income of $32,210 in 2006 and the third fastest-growing per capita income in the nation... Ohio Ohio locations by per capita income Ohio is the twenty-second wealthiest state in the United States of America, with a per capita income of $21,003 .- Ohio locations ranked by per capita income :... Oregon Oregon locations by per capita income The following is a list of Oregon counties and places in order of per capita income.Oregon has the twenty-third highest per capita income in the United States of America, at $20,940 . Its personal per capita income is $29,340 .... Pennsylvania Pennsylvania locations by per capita income Pennsylvania locations by per capita income is a list of all incorporated areas and census-designated places in Pennsylvania ranked from highest capita income to lowest per capita income. There are many communities not on the list because they are neither incorporated nor a census-designated place... Rhode Island Rhode Island locations by per capita income Rhode Island is the 17th richest state in the United States of America, with a per capita income of $21,688 and a personal per capita income of $31,916 . Its median household income is $42,090 , ranked seventeenth in the country, and its median family income is $52,781 , the seventeenth highest in... South Carolina South Carolina locations by per capita income South Carolina is the thirty-seventh richest state in the United States of America, with a per capita income of $18,795 .-South Carolina Places Ranked by Per Capita Income:... South Dakota South Dakota locations by per capita income South Dakota is the forty-fourth richest state in the United States of America, with a per capita income of $17,562 .# Cottonwood, South Dakota $79,000# Naples, South Dakota $78,450# Camp Crook, South Dakota $30,178# Olivet, South Dakota $27,454... Tennessee Tennessee locations by per capita income Tennessee is the thirty-fifth richest state in the United States of America, with a per capita income of $19,393 .- Tennessee places ranked by per capita income :# Belle Meade city, Tennessee $104,016# Forest Hills city, Tennessee $68,228... Texas Texas locations by per capita income Texas is the thirty-second richest state in the United States of America, with a per capita income of $19,617 .-Texas counties ranked by per capita income:... Utah Utah locations by per capita income Utah has the thirty-ninth highest per capita income in the United States of America, at $18,185 . Its personal per capita income is $24,977 .-Utah counties ranked by per capita income:... Vermont Vermont locations by per capita income Vermont has the twenty-fifth highest per capita income in the United States of America, at $20,625 . Its personal per capita income is $30,740 .-Vermont counties ranked by per capita income:... Virginia Virginia locations by per capita income Virginia has the sixth highest per capita income of any state in the United States of America, at $23,975 . Its personal per capita income is $33,671 .- Virginia Counties and Cities Ranked by Per Capita Income :... Washington Washington locations by per capita income Washington is the twelfth richest state in the United States of America, with a per capita income of $22,973 and a personal per capita income of $33,332 .-Washington counties ranked by per capita income:... West Virginia West Virginia locations by per capita income West Virginia is the second poorest state in the United States of America, with a per capita income of $16,477 .- West Virginia counties ranked by per capita income :... Wisconsin Wisconsin locations by per capita income Wisconsin is the twentieth richest state in the United States of America, with a per capita income of $21,271 .- Wisconsin Places Ranked by Per Capita Income :# Chenequa, Wisconsin – $131,108# River Hills, Wisconsin – $95,242... Wyoming Wyoming locations by per capita income Wyoming has the thirty-sixth highest per capita income in the United States of America, at $19,134 . Its personal per capita income is $32,808 .-Wyoming counties ranked by per capita income:...