Amityville
- County:
- Suffolk County
- County Seat:
- No
- Area (mi²):
- 2.056
- State:
- New York
Amityville is a village located in Suffolk County, New York. Amityville has a 2026 population of 9,718. Amityville is currently growing at a rate of 1.08% annually and its population has increased by 2.61% since the most recent census, which recorded a population of 9,471 in 2020.