Otsego County is a county located in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of 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...

. The 2010 population was 62,259. The county seat

County seat

A county seat is an administrative center, or seat of government, for a county or civil parish. The term is primarily used in the United States....

 is Cooperstown

Cooperstown, New York

Cooperstown is a village in Otsego County, New York, USA. It is located in the Town of Otsego. The population was estimated to be 1,852 at the 2010 census.The Village of Cooperstown is the county seat of Otsego County, New York...

. The name Otsego is from a Mohawk

Mohawk language

Mohawk is an Iroquoian language spoken by around 2,000 people of the Mohawk nation in the United States and Canada . Mohawk has the largest number of speakers of the Northern Iroquoian languages; today it is the only one with greater than a thousand remaining...

 word meaning "place of the rock."

For History of Otsego County before 1789 see Montgomery County

Montgomery County, New York

As of the census of 2000, there were 49,708 people, 20,038 households, and 13,104 families residing in the county. The population density was 123 people per square mile . There were 22,522 housing units at an average density of 56 per square mile...

.

In 1789, Ontario County

Ontario County, New York

As of the census of 2000, there were 100,224 people, 38,370 households, and 26,360 families residing in the county. The population density was 156 people per square mile . There were 42,647 housing units at an average density of 66 per square mile...

 was split off from Montgomery. The area split off from Montgomery County

Montgomery County, New York

As of the census of 2000, there were 49,708 people, 20,038 households, and 13,104 families residing in the county. The population density was 123 people per square mile . There were 22,522 housing units at an average density of 56 per square mile...

 was much larger than the present county, as it included the present Allegany

Allegany County, New York

Allegany County is a county located in the U.S. state of New York. As of the 2010 census, the population was 48,946. Its name derives from a Delaware Indian word, applied by settlers of Western New York State to a trail that followed the Allegheny River. Its county seat is...

, Cattaraugus

Cattaraugus County, New York

Cattaraugus County is a county located in the U.S. state of New York. As of the 2010 census, the population was 80,317. The county seat is Little Valley.-History:...

, Chautauqua

Chautauqua County, New York

-Major highways:* Interstate 86/New York State Route 17 * Interstate 90 * U.S. Route 20* U.S. Route 62* New York State Route 5* New York State Route 39* New York State Route 60* New York State Route 394...

, Erie

Erie County, New York

Erie County is a county located in the U.S. state of New York. As of the 2010 census, the population was 919,040. The county seat is Buffalo. The county's name comes from Lake Erie, which in turn comes from the Erie tribe of American Indians who lived south and east of the lake before 1654.Erie...

, Genesee

Genesee County, New York

Genesee County is a county located in Western New York, United States. As of the 2010 census, the population was 60,079. Its name is from the Seneca Indian word Gen-nis'-hee-yo meaning "The Beautiful Valley." Its county seat is Batavia.- History :...

, Livingston

Livingston County, New York

As of the census of 2000, there were 64,328 people, 22,150 households, and 15,349 families residing in the county. The population density was 102 people per square mile . There were 24,023 housing units at an average density of 38 per square mile...

, Monroe

Monroe County, New York

Monroe County is a county located in the U.S. state of New York. As of the 2010 census, the population was 744,344. It is named after James Monroe, fifth President of the United States of America. Its county seat is the city of Rochester....

, Niagara

Niagara County, New York

Niagara County is a county located in the U.S. state of New York. As of the 2010 census, the population was 216,469. The county seat is Lockport. The county name is from the Iroquois word Onguiaahra; meaning the strait or thunder of waters. It is the location of Niagara Falls and Fort Niagara, and...

, Orleans

Orleans County, New York

As of the census of 2000, there were 44,171 people, 15,363 households, and 10,846 families residing in the county. The population density was 113 people per square mile . There were 17,347 housing units at an average density of 44 per square mile...

, Steuben

Steuben County, New York

Steuben County is a county located in the U.S. state of New York. As of the 2010 census, the population was 98,990. Its name is in honor of Baron von Steuben, a German general who fought on the American side in the American Revolutionary War, though it is not pronounced the same...

, Wyoming

Wyoming County, New York

Wyoming County is a county located in the U.S. state of New York. At the 2010 census, the population was 42,155. The county seat is Warsaw. The name is from a modified Delaware Indian word meaning "broad bottom lands"...

, Yates

Yates County, New York

Yates County is a county located in the U.S. state of New York. As of the 2010 census, the population was 25,348. The county seat is Penn Yan. The name is in honor of Joseph C. Yates, who as Governor of New York signed the act establishing the county....

, and part of Schuyler

Schuyler County, New York

As of the census of 2000, there were 19,224 people, 7,374 households, and 5,191 families residing in the county. The population density was 58 people per square mile . There were 9,181 housing units at an average density of 28 per square mile...

 and Wayne counties

Wayne County, New York

Wayne County is a county located in the US state of New York. It is part of the Rochester, New York Metropolitan Statistical Area and lies on the south shore of Lake Ontario, forming part of the northern border of the United States with Canada. The name honors General Anthony Wayne, an American...

.
Otsego County was one of three counties split off from Montgomery (the other two being Herkimer

Herkimer County, New York

Herkimer County is a county located in the U.S. state of New York. It was created in 1791 north of the Mohawk River out of part of Montgomery County. As of the 2010 census, the population was 64,519. It is named after General Nicholas Herkimer, who died from battle wounds in 1777 after taking part...

, and Tioga

Tioga County, New York

As of the census of 2010, there were 51,125 people residing in the county, with 22,203 housing units, of these 20,350 occupied, 1,853 vacant. The population density was 98 people per square mile...

).