Monroe County, New York

Monroe County
Monroe County Gordon A. Howe Office Building on Main and Fitzhugh street in Rochester.
Location within the U.S. state of New York
New York's location within the U.S.
Coordinates: 43°18′N 77°41′W / 43.3°N 77.69°W / 43.3; -77.69
Country United States
State New York
FoundedFebruary 23, 1821 (1821)
Named afterJames Monroe
SeatRochester
Largest cityRochester
Government
  County ExecutiveAdam Bello (D)
Area
  Total
1,367 sq mi (3,540 km2)
  Land657 sq mi (1,700 km2)
  Water710 sq mi (1,800 km2)  52%
Population
 (2020)
  Total
759,443
  Estimate 
(2022)
752,035
  Density560/sq mi (210/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district25th
Websitewww.monroecounty.gov

Monroe County is a county in the U.S. state of New York, located along Lake Ontario's southern shore. As of 2022, the population was 752,035, according to Census Bureau estimates. Its county seat and largest city is Rochester. The county is named after James Monroe, the fifth president of the United States. Monroe County is part of the Rochester, NY Metropolitan Statistical Area. The county is part of the Finger Lakes region of the state.