
Hillsdale
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 47.726
- State:
- New York
Hillsdale is located in Columbia County, New York. Hillsdale has a 2025 population of 1,759. Hillsdale is currently declining at a rate of -1.12% annually and its population has decreased by -3.83% since the most recent census, which recorded a population of 1,829 in 2020.
The average household income in Hillsdale is $149,731 with a poverty rate of 10.12%. The median age in Hillsdale is 53.8 years: 51.5 years for males, and 54.3 years for females.