Batavia
- County:
- Genesee County
- County Seat:
- No
- Area (mi²):
- 5.195
- State:
- New York
Batavia is a city located in Genesee County, New York. Batavia has a 2026 population of 15,071. Batavia is currently declining at a rate of -0.11% annually and its population has decreased by -0.68% since the most recent census, which recorded a population of 15,174 in 2020.