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The Baltimore-Washington Metropolitan Area is a consolidated metropolitan area
Metropolitan area

A metropolitan area is a large population center consisting of a large metropolis and its adjacent zone of influence, or of more than one closely adjoining neighboring central city and their zone of influence....
 consisting of the overlapping labor market region of the cities of 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, founded on July 16, 1790....
 and Baltimore, Maryland
Baltimore, Maryland

Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
.






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Washington Baltimore Northern Virginia Csa, 2005
Dc Balt Metro
The Baltimore-Washington Metropolitan Area is a consolidated metropolitan area
Metropolitan area

A metropolitan area is a large population center consisting of a large metropolis and its adjacent zone of influence, or of more than one closely adjoining neighboring central city and their zone of influence....
 consisting of the overlapping labor market region of the cities of 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, founded on July 16, 1790....
 and Baltimore, Maryland
Baltimore, Maryland

Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
. The region includes Central Maryland
Maryland

Maryland is a U.S. state located in the Mid Atlantic States of the United States, bordering Virginia, West Virginia and the Washington, D.C. to the south and west, Pennsylvania to the north, and Delaware to the east....
, Northern Virginia
Northern Virginia

Northern Virginia consistsof several County and independent cities in the U.S. state of Virginia in a widespread region generally radiating southerly and westward from Washington, D.C....
, and two counties in the Eastern Panhandle
Eastern Panhandle of West Virginia

The Eastern Panhandle of West Virginia is a narrow stretch of territory in the northeast of the state, bordering Maryland and Virginia, United States....
 of West Virginia
West Virginia

West Virginia is a U.S. state in the Appalachian, Upland South, and Mid-Atlantic States regions of the United States, bordered by Virginia on the southeast, Kentucky on the southwest, Ohio on the northwest, and Pennsylvania and Maryland on the northeast....
. It is the fourth largest metropolitan area in the United States
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
.

Officially, the area is designated by the Office of Management and Budget (OMB) as the Washington-Baltimore-Northern Virginia, DC-MD-VA-WV Combined Statistical Area
Combined Statistical Area

The United States Office of Management and Budget defines United States micropolitan area and United States metropolitan area. Metropolitan and micropolitan statistical areas consist of one or more counties ....
 (CSA). The CSA is composed primarily of two major metropolitan areas, the Baltimore-Towson Metropolitan Statistical Area (MSA) and the Washington-Arlington-Alexandria, DC-VA-MD-WV MSA. In addition, three other smaller urban areas not contiguous to the main urban area but having strong commuting ties with the main area are also included in the metropolitan area. These are the Winchester, VA-WV MSA
Winchester, VA-WV MSA

Winchester, VA-WV MSA is a U.S. Metropolitan Statistical Area as defined by the United States Office of Management and Budget as of June, 2003....
, the Lexington Park, MD Micropolitan area and the Culpeper, VA Micropolitan area. Some counties and cities are not officially designated by the OMB as members of this metropolitan area, but still consider themselves members anyway. This is mostly due to their proximity to the area, the size of their commuter population, and by the influence of local broadcasting stations. The population of the entire Baltimore-Washington Metroplex as of 2007 is 8,241,912. The most populous city is Baltimore
Baltimore, Maryland

Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
, with a population of 637,455. The most populous county is Fairfax County, with a population exceeding 1 million.

Components of the metropolitan area

The counties and independent cities and their groupings that comprise the metropolitan area are listed below with 2004 Census Bureau estimates of their populations.

  • Washington-Arlington-Alexandria, DC-VA-MD-WV MSA (5,286,227)
    • Bethesda-Frederick-Gaithersburg, MD Metropolitan Division (1,287,005)
      • Frederick County
        Frederick County, Maryland

        Frederick County is located in the western part of the U.S. state of Maryland, bordering the southern border of Pennsylvania and the northeastern border of Virginia....
      • Montgomery County, Maryland
        Montgomery County, Maryland

        Montgomery County of the U.S. state of Maryland is situated just north of Washington, D.C. and southwest of Baltimore. It is one of the most affluent counties in the nation, and has the highest percentage of residents over 25 years old who hold a post-graduate degree....


    • Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Division (4,131,158)
      • 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, founded on July 16, 1790....
      • Calvert County, Maryland
        Calvert County, Maryland

        Calvert County is a county located in the U.S. state of Maryland. It is on a peninsula, bordered on the east by the Chesapeake Bay, and on the west by the Patuxent River....
      • 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 2000, the population was 120,546. Its county seat is La Plata, Maryland....
      • Prince George's County, Maryland
        Prince George's County, Maryland

        Prince George's County is located in the U.S. state of Maryland immediately north, east, and south of Washington, D.C. As of 2007 U.S. Census Bureau estimates, it had a population of 828,770 and is the wealthiest county in the nation with an African-American majority....
      • Arlington County, Virginia
        Arlington County, Virginia

        Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
      • Clarke County, Virginia
        Clarke County, Virginia

        Clarke County is a county stuck in the U.S. state — officially, "Commonwealth " — of Virginia. As of the United States Census, 2000, the population was 100,652,482....
      • Fairfax County, Virginia
        Fairfax County, Virginia

        Fairfax County is a County in Northern Virginia Virginia, in the United States. , the estimated population of the county is 1,077,000, making it by far the most populous jurisdiction in the Commonwealth of Virginia, and the most populous jurisdiction in the Washington Metropolitan Area....
      • Fauquier County, Virginia
        Fauquier County, Virginia

        Fauquier is a county located in the United States Commonwealth of Virginia. As of the United States Census, 2000, the county's population was 55,139....
      • 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 July 2006, the county is estimated to be home to 268,817 people, a 58 percent increase over the 2000 figure of 169,599....
      • Prince William County, Virginia
        Prince William County, Virginia

        Prince William County is a county located in the Washington Metropolitan Area. The estimated population in 2007 of the county was 383,644, a 36.6% increase since 2000....
      • Spotsylvania County, Virginia
        Spotsylvania County, Virginia

        Spotsylvania County is a county in the U.S. state of Virginia. As of the United States Census, 2000, the population was 90,395. The Census Bureau predicted it to be 119,529 in 2006, a 32.2% increase, making it the fourth fastest growing in the nation....
      • Stafford County, Virginia
        Stafford County, Virginia

        Stafford County is a county located in the Commonwealth of Virginia, a U.S. state. As of the United States Census, 2000, the population was 92,446, however, the estimated population as of 2007 was 124,117, a 33.0% increase....
      • Warren County, Virginia
        Warren County, Virginia

        Warren County is a county located in the United States Commonwealth of Virginia. As of the United States Census, 2000, the population was 31,584....
      • Alexandria, Virginia
        Alexandria, Virginia

        Alexandria is an independent city in the Commonwealth of Virginia. As of the United States Census 2000, the city had a total population of 128,283....
      • Fairfax, Virginia
        Fairfax, Virginia

        This article refers to the independent city of Fairfax, Va. For the surrounding unincorporated area of Fairfax County with a Fairfax postal address, please see Fairfax County, Virginia...
      • Falls Church, Virginia
        Falls Church, Virginia

        Falls Church is an independent city in Virginia, United States. The population is 11,200. This city is a part of the Washington Metropolitan Area....
      • Fredericksburg, Virginia
        Fredericksburg, Virginia

        Fredericksburg is an independent city in the Commonwealth of Virginia located 50 miles south of Washington, D.C., and 58 miles north of Richmond, Virginia....
      • Manassas, Virginia
        Manassas, Virginia

        Manassas is an independent city located in the Commonwealth of Virginia. The population was 35,135 at the United States Census 2000. The Bureau of Economic Analysis combines the city of Manassas with Prince William County, Virginia for statistical purposes....
      • Manassas Park, Virginia
        Manassas Park, Virginia

        Manassas Park is a city in Virginia. Like all Virginia municipalities incorporated as cities, it is an independent city and not part of any county; it is bordered by the city of Manassas, Virginia and Prince William County, Virginia....
      • Jefferson County, West Virginia
        Jefferson County, West Virginia

        Jefferson County is a county located in the U.S. state of West Virginia. As of 2000, the population was 42,190. Its county seat is Charles Town, West Virginia....


  • Baltimore-Towson, MD MSA (2,658,405)
    • Baltimore City
      Baltimore, Maryland

      Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
    • Anne Arundel County
      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 C?cilius Calvert, 2nd Baron Baltimore....
    • Baltimore County
      Baltimore County, Maryland

      Baltimore County is a county located in the northern part of the U.S. state of Maryland. In 2004, its population was estimated to be 763,181.. It is part of the Baltimore-Washington Metropolitan Area....
    • Carroll County
      Carroll County, Maryland

      Carroll County is a county located in the U.S. state of Maryland. In 2000, its population was 150,897. It was named for Charles Carroll of Carrollton , signer of the American Declaration of Independence....
    • Harford County
      Harford County, Maryland

      Harford County is a county in the U.S. state of Maryland. In 2004, its population was estimated to be 233,340. Its county seat is Bel Air, Harford County, Maryland....
    • Howard County
      Howard County, Maryland

      Howard County is a county located in the central part of the U.S. state of Maryland, between Baltimore, Maryland and Washington, D.C.. It is considered part of the Baltimore-Washington Metropolitan Area....
    • Queen Anne's County
      Queen Anne's County, Maryland

      Queen Anne's County is a county located on the Maryland Eastern Shore of the U.S. state of Maryland.As of 2000, the population was 40,563. Its county seat and most populous municipality is Centreville, Maryland....


  • Hagerstown-Martinsburg, MD-WV MSA (261,198)
    • Washington County, Maryland
      Washington County, Maryland

      Washington County is a county located in the Western Maryland of the U.S. state of Maryland, bordering Southern Pennsylvania to the north, Northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west....
    • Berkeley County, West Virginia
      Berkeley County, West Virginia

      Berkeley County is a county located in the Eastern Panhandle of West Virginia region of the U.S. state of West Virginia. As of 2007, the population is 99,734, making it the second-most populous county in West Virginia, behind Kanawha County, West Virginia....
    • Morgan County, West Virginia
      Morgan County, West Virginia

      Morgan County is a county located in the U.S. state of West Virginia. As of 2007, the population was 16,351. Its county seat is Bath , West Virginia....


  • Winchester, VA-WV MSA (118,932)
    • Frederick County, Virginia
      Frederick County, Virginia

      Frederick County is a county located in the U.S. state — officially, "Commonwealth " — of Virginia. It is included in the Winchester, Virginia, Virginia-West Virginia Metropolitan Statistical Area....
    • Winchester city, Virginia
      Winchester, Virginia

      Winchester is an independent city located in the extreme northwestern portion of the Commonwealth of Virginia in the USA. The city's population was 23,585 according to the United States Census 2000....
    • Hampshire County, West Virginia
      Hampshire County, West Virginia

      Hampshire County is a county located in the U.S. state of West Virginia. As of 2000, the population was 20,203. Its county seat is Romney, West Virginia, West Virginia's oldest town ....


  • Lexington Park, MD Micropolitan Area (98,854)
    • Saint Mary's County
      Saint Mary's County, Maryland

      Saint Mary's County is a county located in the U.S. state of Maryland.As of 2000, the population was 86,211, and more recent population estimates are closer to 100,000....


  • Culpeper, VA Micropolitan Area (44,622)
    • Culpeper County
      Culpeper County, Virginia

      Culpeper County is a county located in the U.S. state — officially, "Commonwealth " — of Virginia. As of the United States Census, 2000, the population was 34,262....


Regional organizations


Metropolitan Washington Council of Governments
Founded in 1957, the Metropolitan Washington Council of Governments
Metropolitan Washington Council of Governments

Founded in 1957, the Metropolitan Washington Council of Governments is a regional organization of Washington area local governments. MWCOG comprises 21 local governments in the Washington Metropolitan Area, as well as area members of the Maryland General Assembly and Virginia General Assembly state legislatures, the U.S....
 (MWCOG) is a regional organization of 21 Washington-area local governments, as well as area members of the Maryland
Maryland General Assembly

The Maryland General Assembly is the state legislature of the U.S. state of Maryland. It is a bicameral body. The upper house, the Maryland State Senate, has 47 representatives and the lower house, the Maryland House of Delegates, has 141 representatives....
 and Virginia
Virginia General Assembly

The Virginia General Assembly is the State legislature of the Commonwealth of Virginia. The General Assembly is a bicameralism body consisting of a lower house, the Virginia House of Delegates, with 100 members, and an upper house, the Senate of Virginia, with 40 members....
 state legislatures, the U.S. Senate, and the U.S. House of Representatives. MWCOG provides a forum for discussion and the development of regional responses to issues regarding the environment, transportation, public safety, homeland security, affordable housing, community planning, and economic development.

The National Capital Region Transportation Planning Board, a component of MWCOG, is the federally-designated Metropolitan Planning Organization
Metropolitan planning organization

A Metropolitan area planning organization is a transportation policy-making organization made up of representatives from local government and transportation authorities....
 for the metropolitan Washington area.

Baltimore Metropolitan Council
The is the equivalent organization for the Baltimore portion of the combined Baltimore-Washington Metropolitan Area. The BMC, which was created in 1992 as the successor to the Regional Planning Council and Baltimore Regional Council of Governments, consists of the Baltimore region’s elected executives, representing Baltimore City and Anne Arundel, Baltimore, Carroll, Harford and Howard counties.

The Baltimore Regional Transportation Board is the federally recognized Metropolitan Planning Organization for transportation planning in the Baltimore region.

List of principal cities

See List of cities in the Baltimore-Washington Metropolitan Area
List of cities in the Baltimore-Washington Metropolitan Area

List of cities in the Baltimore-Washington Metropolitan Area....
 for a full list.
Washington area
  • 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, founded on July 16, 1790....
  • Arlington, Virginia
    Arlington County, Virginia

    Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
  • Alexandria, Virginia
    Alexandria, Virginia

    Alexandria is an independent city in the Commonwealth of Virginia. As of the United States Census 2000, the city had a total population of 128,283....
  • Reston, Virginia
    Reston, Virginia

    Reston is an internationally known planned community whose goal was to revolutionize Post-war concepts of land use and residential/corporate development in American suburbia....
  • Bethesda, Maryland
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
  • Frederick, Maryland
    Frederick, Maryland

    Frederick is a city in west-central Maryland, United States. It is the county seat of Frederick County, Maryland, the largest county by area in the State of Maryland....
  • Gaithersburg, Maryland
    Gaithersburg, Maryland

    Gaithersburg is a city in Montgomery County, Maryland, Maryland. , the city had an estimated total population of 57,698, making it the fourth largest in the state behind Baltimore, Maryland, Frederick, Maryland, and Rockville, Maryland....
  • Rockville, Maryland
    Rockville, Maryland

    Rockville is the county seat of Montgomery County, Maryland, United States. According to the 2007 census update, the city had a total population of 58,706, making it the third largest city in Maryland....


Baltimore area
  • Baltimore, Maryland
    Baltimore, Maryland

    Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
  • Towson, Maryland
    Towson, Maryland

    Towson is an unincorporated area community and a census-designated place in Baltimore County, Maryland, Maryland, United States. The population was 51,793 at the 2000 census....


Economy


Primary industries


Biotechnology
Not limited to its proximity to the National Institutes of Health
National Institutes of Health

The National Institutes of Health is an agency of the United States Department of Health and Human Services and is the primary agency of the United States government responsible for biomedical and health-related research....
, Maryland's Washington suburbs are a major center for biotechnology
Biotechnology

Biotechnology is technology based on biology, especially when used in agriculture, food science, and medicine. United Nations Convention on Biological Diversity defines biotechnology as:...
. Prominent local biotech companies include MedImmune
MedImmune

MedImmune, LLC, headquartered in Gaithersburg, Maryland, became a wholly owned subsidiary of AstraZeneca in 2007. Since being acquired, MedImmune has remained a Maryland-based biotechnology development enterprise....
, United Therapeutics, The Institute for Genomic Research
The Institute for Genomic Research

The Institute for Genomic Research was a non-profit genomics research institute founded in 1992 by Craig Venter in Rockville, Maryland, United States....
, Human Genome Sciences
Human Genome Sciences

Human Genome Sciences is a biopharmaceutical corporation founded in 1992. Its stated purpose is to "discover, develop, manufacture and market innovative drugs that serve patients with unmet medical needs, with a primary focus on protein and antibody drugs." The company focuses on drug development, as well as drug discovery and currently has...
 and the Howard Hughes Medical Institute
Howard Hughes Medical Institute

The Howard Hughes Medical Institute is a United States non-profit medicine research institute based in Chevy Chase, Maryland. It was founded by the American aviation magnate Howard Hughes in 1953....
.

Defense contracting
Many defense contractors are based in the region to be close to the Pentagon
The Pentagon

The Pentagon is the headquarters of the United States Department of Defense, located in Arlington County, Virginia, Virginia. As a symbol of the Military of the United States, "the Pentagon" is often used Metonymy to refer to the Department of Defense rather than the building itself....
 in Arlington. Local defense contractors include Lockheed Martin
Lockheed Martin

Lockheed Martin is a large Multinational corporation aerospace manufacturer and advanced technology company formed in 1995 by the Horizontal integration of Lockheed with Martin Marietta....
, the largest, as well as General Dynamics, Computer Sciences Corporation (CSC)
Computer Sciences Corporation

CSC is an information technology and business services company headquartered in Falls Church, Virginia, USA. CSC predominantly provides IT Employment agency services in the following areas: systems integration and professional services; enterprise application development and management; application software for the financial services ind...
, Science Applications International Corporation (SAIC)
Science Applications International Corporation

Science Applications International Corporation is a FORTUNE 500 scientific, engineering and technology applications company in the United States with numerous federal, state, and private sector clients....
, and Orbital Sciences Corporation
Orbital Sciences Corporation

Orbital Sciences Corporation is a Dulles, Virginia, Virginia company which specializes in satellite launch and manufacture. Its Launch Systems Group is heavily involved with National Missile Defense launch systems....
.

Notable company headquarters in the region

(Numbers denote Fortune 500 company
Fortune 500

The Fortune 500 is an annual list compiled and published by Fortune magazine that ranks the top 500 United States public corporations as measured by their gross revenue, although Fortune makes adjustments to the revenue for a number of companies, particularly to exclude the impact of excise taxes companies collect....
 ranking.)

Washington, D.C.
  • Black Entertainment Television
    Black Entertainment Television

    Black Entertainment Television is an American cable television based in Washington, D.C. and targeted towards young black people and urban audiences in the United States....
  • Bureau of National Affairs
    Bureau of National Affairs

    The Bureau of National Affairs, Inc. is an independent, privately owned publisher of specialized online and print news and information for professionals in business and government....
  • Calibre Energy
    Calibre Energy

    Calibre Energy, Inc. is a Washington, D.C.-based oil exploration company. Most of their operations are in Texas but Calibre was the first U.S. company with oil drilling operations in Iraq following the Iraq War through agreements with the government of Iraqi Kurdistan....
  • Carlyle Group
    Carlyle Group

    The Carlyle Group is a global private equity investment firm, based in Washington, D.C., with more than $91.5 billion of equity capital under management....
  • Danaher
    Danaher

    Danaher may refer to:* Kevin Danaher , , author and prominent Irish folklorist* Kevin Danaher , Ph.D. in sociology, author of several books on Green Economy...
     239
  • Federal National Mortgage Association
    Federal National Mortgage Association

    The Federal National Mortgage Association , commonly known as Fannie Mae, is a stockholder-owned corporation chartered by Congress in 1968 as a government sponsored enterprise , but founded in 1938 during the Great Depression....
     "Fannie Mae" 53
  • National Geographic Society
    National Geographic Society

    The National Geographic Society , headquartered in Washington, D.C. in the United States, is one of the largest non-profit scientific and educational institutions in the world....
  • Pepco Holdings, Inc. 279
  • Washington Post Company
    Washington Post Company

    The Washington Post Company is an American education and media company, best known for owning the newspaper it is named after, The Washington Post....
  • XM Satellite Radio
    XM Satellite Radio

    XM Satellite Radio is one of two satellite radio services in the United States and Canada, operated by Sirius XM Radio. It provides pay-for-service radio, analogous to cable television....


Maryland
Washington area:
  • BAE Systems Inc.
    BAE Systems Inc.

    BAE Systems Inc. is a major subsidiary of the United Kingdom-based defence and aerospace company BAE Systems. As per its Special Security Arrangement, BAE Systems Inc....
     (Rockville
    Rockville, Maryland

    Rockville is the county seat of Montgomery County, Maryland, United States. According to the 2007 census update, the city had a total population of 58,706, making it the third largest city in Maryland....
    )
  • Bethesda Softworks
    Bethesda Softworks

    Bethesda Softworks, LLC, a ZeniMax Media Company, is a video game developer and video game publisher of video games. The company, whose parent company is ZeniMax Media, is based in Rockville, Maryland, in the United States....
     (Rockville
    Rockville, Maryland

    Rockville is the county seat of Montgomery County, Maryland, United States. According to the 2007 census update, the city had a total population of 58,706, making it the third largest city in Maryland....
    )
  • Chevy Chase Bank
    Chevy Chase Bank

    Chevy Chase Bank, federal savings association is the largest locally-based banking company in the Washington Metropolitan Area. Despite its name, it is a federally chartered thrift regulated by the Office of Thrift Supervision, rather than a bank....
     (Bethesda
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
    )
  • Choice Hotels
    Choice Hotels

    Choice Hotels International is a hospitality holding company which owns several hotel brands and is based in Silver Spring, Maryland....
     (Silver Spring
    Silver Spring, Maryland

    Silver Spring is an urbanized, unincorporated area in Montgomery County, Maryland, United States. After Baltimore, Maryland and Columbia, Maryland, the Silver Spring Census-designated place is the third most populous place in Maryland....
    )
  • Coventry Health Care
    Coventry Health Care

    Coventry Health Care, Inc. is a managed health care company in the United States. On February 8th of 2007 Coventry agreed to acquire Concentra's Workers Compensation Managed Care Services Businesses....
     (Bethesda
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
    ) 226
  • Discovery Communications
    Discovery Communications

    Discovery Communications, Inc. is an United States global media and entertainment company that was launched in 1985 and began as a single channel, Discovery Channel....
     (Silver Spring
    Silver Spring, Maryland

    Silver Spring is an urbanized, unincorporated area in Montgomery County, Maryland, United States. After Baltimore, Maryland and Columbia, Maryland, the Silver Spring Census-designated place is the third most populous place in Maryland....
    )
  • GEICO
    GEICO

    The Government Employees Insurance Company, usually known by the acronym GEICO, is an American auto insurance company. GEICO is a wholly owned subsidiary of Berkshire Hathaway and, as of 2007, provided coverage for more than 10 million motor cars, trucks and other motor vehicles owned by more than 9 million insurance contract holders....
     (Chevy Chase
    Chevy Chase, Maryland

    Chevy Chase is the name of both a town and an unincorporated Census-Designated Place in Montgomery County, Maryland. In addition, a number of villages in the same area of Montgomery County include "Chevy Chase" in their names....
    )
  • Host Hotels & Resorts
    Host Hotels & Resorts

    Host Hotels & Resorts is a Real estate investment trust and the owner of lodging real estate based in Bethesda, Maryland, Maryland....
     (Bethesda
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
    ) 440
  • Hughes Network Systems
    Hughes Network Systems

    Hughes Network Systems, LLC , is a provider of broadband satellite network products for businesses and consumers. HNS pioneered the development of high-speed satellite Internet access services and Internet Protocol-based networks with its original DirecPC service but which it now markets globally under the HughesNet brand....
     (Germantown)
  • Lockheed Martin
    Lockheed Martin

    Lockheed Martin is a large Multinational corporation aerospace manufacturer and advanced technology company formed in 1995 by the Horizontal integration of Lockheed with Martin Marietta....
     (Bethesda
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
    ) 57
  • Marriott International
    Marriott International

    Marriott International, Inc. is a worldwide operator and franchisor of a range of value and luxury hotels and related lodging facilities. Marriott currently has 2,300 accommodation properties in North America alone....
     (Bethesda
    Bethesda, Maryland

    Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Presbyterian Church, built in 1820 and rebuilt in 1850, which in turn took its name from Jerusalem's Pool of Bethesda....
    ) 197
  • MedImmune
    MedImmune

    MedImmune, LLC, headquartered in Gaithersburg, Maryland, became a wholly owned subsidiary of AstraZeneca in 2007. Since being acquired, MedImmune has remained a Maryland-based biotechnology development enterprise....
     (Gaithersburg
    Gaithersburg, Maryland

    Gaithersburg is a city in Montgomery County, Maryland, Maryland. , the city had an estimated total population of 57,698, making it the fourth largest in the state behind Baltimore, Maryland, Frederick, Maryland, and Rockville, Maryland....
    )
  • Radio One
    Radio One

    Radio One, Inc is an United States company which owns and operates 69 radio stations in 22 American cities, and programs a channel on XM Satellite Radio, The Power ....
     (Lanham
    Lanham, Maryland

    Lanham is an unincorporated area in Prince George's County, Maryland in the U.S. state of Maryland in the United States. Because it is not formally incorporated, it has no official boundaries, but the United States Census Bureau has defined a census-designated place consisting of Lanham and the adjacent community of Seabrook, Maryland, design...
    )
  • Ritz Carlton (Chevy Chase
    Chevy Chase, Maryland

    Chevy Chase is the name of both a town and an unincorporated Census-Designated Place in Montgomery County, Maryland. In addition, a number of villages in the same area of Montgomery County include "Chevy Chase" in their names....
    )
  • TV One
    TV One

    TV One can refer to:* TV ONE, a television network in New Zealand operated by Television New Zealand* TV One , a television network in the United States operated by Radio One ...
     (Silver Spring
    Silver Spring, Maryland

    Silver Spring is an urbanized, unincorporated area in Montgomery County, Maryland, United States. After Baltimore, Maryland and Columbia, Maryland, the Silver Spring Census-designated place is the third most populous place in Maryland....
    )
Baltimore area:
  • ARINC
    ARINC

    Aeronautical Radio, Incorporated , established in 1929, is the leading provider of transport communications and systems engineering solutions for eight major industries: ....
     (Annapolis
    Annapolis, Maryland

    Annapolis is the capital of the U.S. state of Maryland, as well as the county seat of Anne Arundel County, Maryland. It has a population of 36,408 , and is situated on the Chesapeake Bay at the mouth of the Severn River , south of Baltimore and about east of Washington D.C....
    )
  • Black & Decker
    Black & Decker

    Black & Decker Corporation is a corporation based in Towson, Maryland, United States, that makes and markets:*power tools and accessories,*hardware and home improvement products, and...
     (Towson
    Towson, Maryland

    Towson is an unincorporated area community and a census-designated place in Baltimore County, Maryland, Maryland, United States. The population was 51,793 at the 2000 census....
    ) 372
  • Constellation Energy
    Constellation Energy

    Constellation Energy , headquartered in Baltimore, Maryland, USA, generates, trades, supplies, and distributes energy. The company operates over 35 power plants in 11 states under its operating company Constellation Commodities Group and/or Constellation Generation Group....
     (Baltimore
    Baltimore, Maryland

    Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
    ) 117
  • Fila
    Fila (company)

    Fila is South Korea's largest sportswear manufacturing company, founded in 1911 in Italy. Fila is one of the best known South Korean brands and is among the most popular sportwear brands in the world, headed by chairman and CEO Yoon-Soo Yoon....
     USA (Sparks
    Sparks, Maryland

    Sparks is an unincorporated area community that is located in northern Baltimore County, Maryland, United States. It is situated approximately 20 miles north of Baltimore, Maryland and is considered to be a suburb of the City of Baltimore....
    )
  • Legg Mason
    Legg Mason

    Legg Mason, Inc. is a global investment management firm with a focus on asset management. The company?s business is divided in three units: institutional, managed investments, and wealth management....
     (Baltimore)
  • McCormick & Company
    McCormick & Company

    McCormick & Company is the global leader in the manufacture, marketing, and distribution of spices, herbs, and flavorings for the retail, commercial, and industrial markets....
     (Hunt Valley)
  • New Enterprise Associates
    New Enterprise Associates

    New Enterprise Associates based in Baltimore, Maryland is one of the world's leading venture capital firms focused on information technology and healthcare investments....
     (Baltimore
    Baltimore, Maryland

    Baltimore is an independent city and the largest city in the U.S. state of Maryland in the United States. Baltimore is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay....
    )
  • T. Rowe Price
    T. Rowe Price

    T. Rowe Price , is a publicly owned Investment company, headquartered in Baltimore, Maryland. It was founded in 1937 by Thomas Rowe Price, Jr.....
     (Baltimore)
  • Under Armour
    Under Armour

    Under Armour, , is a US clothing company best-known for its introduction of form-fitting, moisture-wicking performance apparel designed to be worn under sportswear....
     (Baltimore)


Northern Virginia
  • AES Corporation
    AES Corporation

    AES Corporation is a Fortune 1000 company that generates and distributes electric power. It was founded on January 28, 1981, by Roger Sant from the United States Federal Energy Administration and Dennis Bakke from the Office of Management and Budget....
     (Arlington
    Arlington County, Virginia

    Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
    ) 183
  • Airbus
    Airbus

    Airbus Soci?t? par actions simplifi?e is an Aerospace manufacturer subsidiary of EADS, a European aerospace company. Based in Toulouse, France, and with significant activity across Europe, the company produces around half of the world's jet airliners....
     North America (Herndon
    Herndon, Virginia

    Herndon is a town in Fairfax County, Virginia, Virginia, United States. The population was 21,655 at the 2000 census, which makes it the largest of three towns in the county....
    )
  • BearingPoint
    BearingPoint

    BearingPoint Inc. is one of the world?s largest providers of management and technology consulting services to Forbes Global 2000 companies and government organizations in more than 60 countries....
     (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    )
  • Booz Allen Hamilton
    Booz Allen Hamilton

    Booz Allen Hamilton, or more commonly Booz Allen or BAH, is a Privately held company consulting firm headquartered in McLean, Virginia, with 80 other offices throughout the nation....
     (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    )
  • CACI
    CACI

    CACI International, Inc. is a publicly held Information Technology company, headquartered in Arlington, Virginia and London, England. CACI provides national security, defense, and intelligence-related solutions in the national interest of the United States to counter the threat of global terrorism, assure homeland security, and strengthen...
     (Arlington
    Arlington County, Virginia

    Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
    )
  • Capital One (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    ) 130
  • Computer Sciences Corporation
    Computer Sciences Corporation

    CSC is an information technology and business services company headquartered in Falls Church, Virginia, USA. CSC predominantly provides IT Employment agency services in the following areas: systems integration and professional services; enterprise application development and management; application software for the financial services ind...
     (Falls Church
    Falls Church, Virginia

    Falls Church is an independent city in Virginia, United States. The population is 11,200. This city is a part of the Washington Metropolitan Area....
    ) 170
  • DynCorp International
    DynCorp International

    DynCorp International is a United States-based private military contractor and aircraft maintenance company. DynCorp receives more than 96 percent of its $2 billion in annual revenues from the federal government....
     (Falls Church
    Falls Church, Virginia

    Falls Church is an independent city in Virginia, United States. The population is 11,200. This city is a part of the Washington Metropolitan Area....
    )
  • Federal Home Loan Mortgage Corporation
    Federal Home Loan Mortgage Corporation

    The Federal Home Loan Mortgage Corporation , known as Freddie Mac, is an insolvent government sponsored enterprise of the United States United States federal government....
     (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    ) "Freddie Mac" 54
  • FNH
    Fabrique Nationale de Herstal

    Fabrique Nationale de Herstal, more often abbreviated as Fabrique Nationale or simply FN, is a Belgium manufacturer of firearms. The official company name is FN Herstal....
     USA (Fredericksburg
    Fredericksburg, Virginia

    Fredericksburg is an independent city in the Commonwealth of Virginia located 50 miles south of Washington, D.C., and 58 miles north of Richmond, Virginia....
    )
  • Gannett Company (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    ) 332
  • General Dynamics
    General Dynamics

    General Dynamics Corporation is a defense conglomerate formed by mergers and divestitures, and as of 2008 it is the fifth largest defense contractor in the world....
     (Falls Church
    Falls Church, Virginia

    Falls Church is an independent city in Virginia, United States. The population is 11,200. This city is a part of the Washington Metropolitan Area....
    ) 87
  • Kellogg Brown and Root Services (Arlington
    Arlington County, Virginia

    Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
    )
  • Mars, Incorporated
    Mars, Incorporated

    Mars, Incorporated is a worldwide manufacturer of confectionery, pet food and other food products with United States dollar21 billion in annual sales in 2006....
     (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    )
  • Navy Federal Credit Union
    Navy Federal Credit Union

    Navy Federal Credit Union is a credit union headquartered in Vienna, Virginia, chartered and regulated under the authority of the National Credit Union Administration of the US federal government....
     (Vienna
    Vienna, Virginia

    Vienna is a town in Fairfax County, Virginia, Virginia, United States. The population was 14,453 at the 2000 census and it has grown by about 3% since....
    )
  • NII Holdings
    NII Holdings

    NII Holdings Inc. is a mobile phone company using the iDEN standard. NII sells products under the Nextel name to Latin American countries. Included are Mexico, Argentina, Peru, Brazil, and Chile....
    (Reston
    Reston, Virginia

    Reston is an internationally known planned community whose goal was to revolutionize Post-war concepts of land use and residential/corporate development in American suburbia....
    )
  • NVR Incorporated
    Nvr

    * Naval Vessel Rules, a publication of the American Bureau of Shipping.* Network Video Recorder, a distributed Digital video recorder....
     (Reston
    Reston, Virginia

    Reston is an internationally known planned community whose goal was to revolutionize Post-war concepts of land use and residential/corporate development in American suburbia....
    ) 464
  • Orbital Sciences
    Orbital Sciences Corporation

    Orbital Sciences Corporation is a Dulles, Virginia, Virginia company which specializes in satellite launch and manufacture. Its Launch Systems Group is heavily involved with National Missile Defense launch systems....
     (Dulles
    Dulles, Virginia

    Dulles, Virginia is an unincorporated area census-designated place located in Loudoun County, Virginia, Virginia, part of the Washington Metropolitan Area....
    )
  • Rolls-Royce North America
    Rolls-Royce North America

    Rolls-Royce North America, Inc. is a subsidiary of Rolls-Royce plc involved principally in the manufacture of gas turbine engines and other propulsion systems....
     (Reston
    Reston, Virginia

    Reston is an internationally known planned community whose goal was to revolutionize Post-war concepts of land use and residential/corporate development in American suburbia....
    )
  • Space Adventures
    Space Adventures

    Space Adventures, Ltd. is a space tourism company that provides human space missions to the world marketplace. It is the only company that is sending private space explorers....
     (Vienna
    Vienna, Virginia

    Vienna is a town in Fairfax County, Virginia, Virginia, United States. The population was 14,453 at the 2000 census and it has grown by about 3% since....
    )
  • SLM Corporation
    SLM Corporation

    SLM Corporation , commonly known as Sallie Mae, is the United States' largest college student loan #United States company, managing more than $126.9 billion in debt for more than 10 million borrowers, and employing 12,000 individuals at offices nationwide....
     (Reston
    Reston, Virginia

    Reston is an internationally known planned community whose goal was to revolutionize Post-war concepts of land use and residential/corporate development in American suburbia....
    ) "Sallie Mae" 286
  • USA Today
    USA Today

    'USA TODAY' is a national United States daily newspaper published by the Gannett Company. It was founded by Allen Neuharth. The paper has the widest newspaper circulation of any newspaper in the United States , and among English-language broadsheets, it comes second worldwide, behind only the 2.6 million daily paid copies of The Times of...
     (McLean
    McLean, Virginia

    McLean is a census-designated place in Fairfax County, Virginia in Northern Virginia Virginia. The community had a total population of 38,929 as of the United States 2000 census....
    )
  • Verizon Business
    Verizon Business

    Verizon Business is one of three operating units of Verizon Communications Inc. It was created in 2006 when Verizon Communications, Inc. closed on its merger with MCI, Inc.....
     (Ashburn
    Ashburn, Virginia

    Ashburn, Virginia is an unincorporated area located in Loudoun County, Virginia, Virginia, west of Washington, D.C., and is part of the Washington Metropolitan Area....
    )
  • Volkswagen Group of America (Herndon
    Herndon, Virginia

    Herndon is a town in Fairfax County, Virginia, Virginia, United States. The population was 21,655 at the 2000 census, which makes it the largest of three towns in the county....
    )


Transportation

Metro Center Upper Level

Major airports

  • Washington Dulles International Airport
    Washington Dulles International Airport

    Washington Dulles International Airport is a public airport located 25 miles west of the central business district of Washington, D.C., in Dulles, Virginia ....
     (Chantilly, Virginia
    Chantilly, Virginia

    Chantilly is an unincorporated community located in western Fairfax County, Virginia and southeastern Loudoun County, Virginia of Northern Virginia....
     - busiest in region
    Busiest airports in the United States by international passenger traffic

    The busiest airports in the United States by international passenger traffic from the years 1990, 1995, 2000 and 2005 from the Bureau of Transportation Statistics at the U.S....
    )
  • Baltimore-Washington International Thurgood Marshall Airport
    Baltimore-Washington International Thurgood Marshall Airport

    Baltimore/Washington International Thurgood Marshall Airport serves the Baltimore-Washington Metropolitan Area . It is commonly called BWI or BWI Airport, its IATA Airport Code, an initialism for "Baltimore/Washington International," or as BWI-Marshall....
     (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 C?cilius Calvert, 2nd Baron Baltimore....
     - closest to Baltimore)
  • Ronald Reagan Washington National Airport
    Ronald Reagan Washington National Airport

    Ronald Reagan Washington National Airport is a public airport located three miles south of the central business district of Washington, D.C., in Arlington County, Virginia, United States....
     (Arlington County, Virginia
    Arlington County, Virginia

    Arlington County is an urban area county of about 206,800 residents in the Commonwealth of Virginia. It is located directly across the Potomac River to the west of Washington, D.C....
     - closest to Washington)


Rail transit systems

  • Amtrak
    Amtrak

    The National Railroad Passenger Corporation, doing business as Amtrak , is a government-owned corporation that was organized on May 1, 1971 to provide Inter-city rail train#Passenger trains service in the United States....
  • Washington Metro
    Washington Metro

    The Washington Metro is the rapid transit system in Washington, D.C. and its surrounding suburbs. The system is administered by the Washington Metropolitan Area Transit Authority ....
  • MARC Train
    MARC Train

    MARC , and known prior to 1984 as Maryland Rail Commuter Service, is a regional rail system comprising three lines in the Baltimore-Washington Metropolitan Area....
  • Baltimore Light Rail
    Baltimore Light Rail

    The Maryland Transit Administration Light Rail is a light rail system serving Baltimore, Maryland, United States, and the surrounding suburbs.In downtown Baltimore it street running....
  • Baltimore Metro Subway
    Baltimore Metro Subway

    The Metro Subway or Baltimore Metro is a single-line rapid transit system serving the greater Baltimore, Maryland, United States area and operated by the Maryland Transit Administration....
  • Virginia Railway Express
    Virginia Railway Express

    The Virginia Railway Express is a Regional rail service that connects the Northern Virginia area with Washington, DC. VRE is a transportation partnership of the Northern Virginia Transportation Commission and the Potomac and Rappahannock Transportation Commission ....


Major highways

  • I 270
    Interstate 270
    Interstate 270 (Maryland)

    Interstate 270 is a spur route Interstate Highway that travels between Interstate 70 in Frederick, Maryland and Interstate 495 just north of Bethesda, Maryland....
  • I 370
    Interstate 370
  • I 70
    Interstate 70
    Interstate 70

    Interstate 70 is an Interstate Highway in the United States that runs from Interstate 15 in Utah near Cove Fort, Utah, to a Park and Ride in Baltimore, Maryland....
  • I 66
    Interstate 66
    Interstate 66

    Interstate 66 is an Interstate Highway in the eastern United States. As indicated by its even route number, it runs in an east-west direction....
  • I 83
    Interstate 83
    Interstate 83

    Interstate 83 is an Interstate Highway in the eastern United States. Its southern terminus is in Baltimore, Maryland at the Fayette Street exit; its northern terminus is in Harrisburg, Pennsylvania at Interstate 81....
  • I 95
    Interstate 95
    Interstate 95

    Interstate 95 is the main highway on the East Coast of the United States, paralleling the Atlantic Ocean from Maine to Florida and serving some of the most populated urban areas in the country, including Boston, New York City, Philadelphia, Baltimore, Washington, D.C., and Miami....
  • I 81
    Interstate 81
    Interstate 81

    Interstate 81 is an Interstate Highway in the eastern part of the United States. Its southern terminus is at Interstate 40 in Dandridge, Tennessee; its northern terminus is on Wellesley Island at the Canada?United States border, where the Thousand Islands Bridge connects it to Highway 401 , the main freeway connecting Windsor, Ontario-Detro...
  • I 195
    Interstate 195
    Interstate 195 (Maryland)

    Interstate 195 in Maryland is a spur of Interstate 95 in Maryland just south of Baltimore, Maryland that travels from Interstate 95 in Maryland to Baltimore-Washington International Airport....
  • I 295
    Interstate 295
  • I 395
    Interstate 395 (District of Columbia-Virginia)
    Interstate 395 (District of Columbia-Virginia)

    Interstate 395 in Virginia is a 13 mile long spur route that begins at a junction with Interstate 95 in Virginia in Springfield, Virginia and ends in Washington, D.C....
  • I 395
    Interstate 395 (Maryland)
    Interstate 395 (Maryland)

    Interstate 395 is a 2-mile-long spur from Interstate 95 in Maryland that travels from Interstate 95 in Maryland to downtown Baltimore, Maryland....
  • I 495
    Interstate 495
    Interstate 495 (Capital Beltway)

    Interstate 495 is an Interstate Highway that circles Washington, D.C. and its inner suburbs in Maryland and Virginia. I-495 is widely known as the Capital Beltway or simply the Beltway, especially when the context of Washington, D.C....
     (Capital Beltway)
  • I 695
    Interstate 695
    Interstate 695 (Maryland)

    Interstate 695 is a -long full beltway Interstate Highway extending around Baltimore, Maryland, USA. I-695 is officially designated the McKeldin Beltway, but is colloquially referred to as either the Baltimore Beltway or 695....
     (Baltimore Beltway)
  • I 795
    Interstate 795
    Interstate 795 (Maryland)

    Interstate 795 , also known as the Northwest Expressway, is a nine-mile freeway linking Baltimore, Maryland's northwestern suburbs of Pikesville, Maryland, Owings Mills, Maryland and Reisterstown, Maryland to the Baltimore Beltway ....
  • I 895
    Interstate 895
    Interstate 895 (Maryland)

    Interstate 895 - the Harbor Tunnel Thruway - is a freeway in the U.S. state of Maryland owned and maintained by the Maryland Transportation Authority....
  • I 97
    Interstate 97
    Interstate 97

    Interstate 97 is an List of intrastate Interstate Highways Interstate Highway System located entirely within Anne Arundel County, Maryland, United States....
  • Us 1
    U.S. Route 1
    U.S. Route 1

    U.S. Route 1 is a major north-south U.S. Highway that serves the East Coast of the United States. It runs over 2000 miles from Key West, Florida north to Fort Kent, Maine at the Canadian border ....
  • Us 50
    U.S. Route 50
    U.S. Route 50

    U.S. Route 50 is a major east-west route of the U.S. Highway system, stretching just over 3000 miles from Ocean City, Maryland on the Atlantic Ocean to West Sacramento, California....
  • Us 29
    U.S. Route 29
    U.S. Route 29

    U.S. Route 29 is a north-south United States highway that runs for 1,036 miles from the western suburbs of Baltimore, Maryland, to Pensacola, Florida....
  • Us 15
    U.S. Route 15
    U.S. Route 15

    U.S. Route 15 is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York....
  • Us 11
    U.S. Route 11
    U.S. Route 11

    U.S. Route 11 is a north-south United States highway extending 1,645 miles across the eastern United States. The southern terminus of the route is at U.S....
  • Us 340
    U.S. Route 340
    U.S. Route 340

    U.S. Route 340 is a spur of U.S. Route 40. It currently runs for 156 miles from Frederick, Maryland at U.S. Highway 40 to Greenville, Virginia at U.S....
  • Us 40
    U.S. Route 40
    U.S. Route 40

    U.S. Route 40 is an east-west United States highway. As with most routes whose numbers end in a zero, U.S. 40 once traversed the entire United States....
  • Md Route 2
    Maryland Route 2
    Maryland Route 2

    Maryland Route 2 is the longest state highway in Maryland. Much of the northern section consists of Governor Ritchie Highway, the first high-speed roadway connecting Baltimore, Maryland and Annapolis, Maryland....
  • Md Route 4
    Maryland Route 4
    Maryland Route 4

    Maryland Route 4 is a long road that runs northwest to southeast in Maryland. For all but 10 of its it is within the Patuxent River watershed, a river that it crosses twice....
  • Md Route 26
    Maryland Route 26
    Maryland Route 26

    Maryland Route 26 is an east-west road in central Maryland. Outside of the Baltimore, Maryland city limits, it is known as Liberty Road; inside the city limits it is known as Liberty Heights Avenue....
  • Md Route 32
    Maryland Route 32
    Maryland Route 32

    Maryland Route 32 is a highway in central Maryland that connects Westminster, Maryland, in Carroll County, Maryland, to Anne Arundel County, Maryland , via Howard County, Maryland....
  • Md Route 100
    Maryland Route 100
    Maryland Route 100

    Maryland Route 100 is a major east-west highway connecting U.S. Route 29 in Ellicott City, Maryland and Maryland Route 177/Mountain Road in Pasadena, Maryland....
  • Md Route 295
    Baltimore-Washington Parkway
    Baltimore-Washington Parkway

    The Baltimore-Washington Parkway is a freeway in the U.S. state of Maryland, running southwest from Baltimore to Washington, D.C.The National Park Service-maintained portion of the freeway is dedicated to Gladys Noon Spellman....
    /Maryland Route 295
  • Md Route 355
    Maryland Route 355
    Maryland Route 355

    Maryland Route 355 is a north-south road in western central Maryland. MD 355 is the original route of U.S. Route 240. This route served as the primary connector linking Frederick and points west to Washington, D.C., prior to construction of current Interstate 270 ....
  • Virginia 267
    Virginia Route 267
  • Virginia 28
    Virginia Route 28
  • Virginia 7
    Virginia Route 7
  • Virginia 9
    Virginia Route 9


  • Wv 9
    West Virginia Route 9


See also

  • United States metropolitan area
    United States metropolitan area

    In the United States, the Office of Management and Budget has produced a formal definition of metropolitan areas. These are referred to as "Metropolitan Statistical Areas" and "Combined Statistical Areas." An earlier version of the MSA was the "Standard Metropolitan Statistical Area" ....
  • National Capital Region
  • List of parks in the Baltimore-Washington Metropolitan Area
    List of parks in the Baltimore-Washington Metropolitan Area

    The largest contiguous public parks-preserves within of either Baltimore, Md. or Washington, D.C.:#Prince William Forest Park * - Locust Shade, Virginia * — *about one-third is generally closed to the public....