
Wellsville
- County:
- Allegany County
- County Seat:
- No
- Area (mi²):
- 2.424
- State:
- New York
Wellsville is a village located in Allegany County, New York. Wellsville has a 2025 population of 4,521. Wellsville is currently declining at a rate of -0.48% annually and its population has decreased by -2.42% since the most recent census, which recorded a population of 4,633 in 2020.
The average household income in Wellsville is $62,391 with a poverty rate of 24.1%. The median age in Wellsville is 45.7 years: 43.3 years for males, and 50 years for females.