
Allegany County
- State:
- Maryland
- County Seat:
- Cumberland
Allegany County's estimated 2025 population is 67,287 with a growth rate of 0.01% in the past year according to the most recent United States census data. Allegany County is the 16th largest county in Maryland. The 2010 population was 74,968 and has seen a growth of -10.25% since that time.