Genesee County, New York

Genesee County, New York
Location within the U.S. state of New York
Coordinates: 43°00′N 78°11′W / 43°N 78.19°W / 43; -78.19
Country United States
State New York
FoundedMarch 1803
Named afterSeneca for "good valley"
SeatBatavia
Largest cityBatavia
Area
 • Total
495 sq mi (1,280 km2)
 • Land493 sq mi (1,280 km2)
 • Water2.4 sq mi (6.2 km2)  0.5%
Population
 ([[2020 United States census|2020]])
 • Total
58,388
 • Density118/sq mi (45.7/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district24th
Websitewww.geneseeny.gov/Home

Genesee County is a county in the U.S. state of New York. As of the 2020 census, the population was 58,388. Its county seat is Batavia. Its name is from the Seneca word Gen-nis'-hee-yo, meaning "the Beautiful Valley". The county was created in 1802 and organized in 1803. The county is part of the Finger Lakes region of the state.

Genesee County comprises the Batavia, NY micropolitan statistical area, which is also in the Rochester-Batavia-Seneca Falls, NY combined statistical area. It is in Western New York. It is the namesake of Genesee County, Michigan; that is, the Michigan county was named for Genesee County, New York.