
Herkimer County
- State:
- New York
Herkimer County's estimated 2025 population is 59,284 with a growth rate of -0.17% in the past year according to the most recent United States census data. Herkimer County is the 41st largest county in New York. The 2010 population was 64,470 and has seen a growth of -8.04% since that time.