Ulster County, New York

Ulster County, New York
Location within the U.S. state of New York
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 (96 km2)  3.1%
Population
 (2020)
 • Total
181,851
 • Density162.8/sq mi (62.9/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional districts18th, 19th
Websitewww.ulstercountyny.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 182,977. 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.