Ulster County, New York

Ulster County
Location within the U.S. state of New York
New York's location within the U.S.
Coordinates: 41°53′N 74°16′W / 41.89°N 74.26°W / 41.89; -74.26
Country United States
State New York
FoundedNovember 1, 1683 (1683-11-01)
Named afterPrince James, Duke of York and Albany and Earl of Ulster
SeatKingston
Largest cityKingston
Government
  County ExecutiveJen Metzger (D)
Area
  Total
1,161 sq mi (3,010 km2)
  Land1,124 sq mi (2,910 km2)
  Water37 sq mi (100 km2)  3.1%
Population
 (2020)
  Total
181,851
  Density160/sq mi (60/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional districts18th, 19th
Websiteulstercountyny.gov

Ulster County is a county in the U.S. state of New York. It is situated along the Hudson River. As of the 2020 census, the population was 181,851. The county seat is Kingston. The county is named after the Irish province of Ulster. The county is part of the Hudson Valley region of the state.