Allegany County Flag

Allegany County

State:
New York
County Seat:
Belmont

Allegany County's estimated 2026 population is 46,778 with a growth rate of -0.05% in the past year according to the most recent United States census data. Allegany County is the 49th largest county in New York. The 2010 population was 48,973 and has seen a growth of -4.48% since that time.

46,778
Total Population
45
Population Density (mi²)
49
Population Rank (State)
-22 -0.05%
Annual Population Growth

Allegany County Population

Demographics

Economics and Income Statistics