
Cold Brook
- County:
- Herkimer County
- County Seat:
- No
- Area (mi²):
- 0.439
- State:
- New York
Cold Brook is a village located in Herkimer County, New York. Cold Brook has a 2025 population of 256. Cold Brook is currently declining at a rate of -0.78% annually and its population has decreased by -3.76% since the most recent census, which recorded a population of 266 in 2020.
The average household income in Cold Brook is $88,635 with a poverty rate of 13.04%. The median age in Cold Brook is 35.8 years: 41.7 years for males, and 30.9 years for females.