Otsego County, New York
Otsego County is a county in the U.S. state of New York. As of the 2010 census, the population was 62,259. The county seat is Cooperstown. The name Otsego is from a Mohawk or Oneida word meaning "place of the rock."
In 1789, Ontario County was split off from Montgomery. The area split off from Montgomery County was much larger than the present county, as it included the present Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston, Monroe, Niagara, Orleans, Steuben, Wyoming, Yates, and part of Schuyler and Wayne counties.