
Fillmore
- County:
- Allegany County
- County Seat:
- No
- Area (mi²):
- 0.949
- State:
- New York
Fillmore is a CDP located in Allegany County, New York. Fillmore has a 2025 population of 664. Fillmore is currently growing at a rate of 0.61% annually and its population has increased by 23.42% since the most recent census, which recorded a population of 538 in 2020.
The average household income in Fillmore is $75,343 with a poverty rate of 2.43%. The median age in Fillmore is 40.8 years: 51.3 years for males, and 31.4 years for females.