
Castleton on Hudson
- County:
- Rensselaer County
- County Seat:
- No
- Area (mi²):
- 0.714
- State:
- New York
Castleton-on-Hudson is a village located in Rensselaer County, New York. Castleton-on-Hudson has a 2025 population of 1,448. Castleton-on-Hudson is currently declining at a rate of -0.28% annually and its population has decreased by -1.3% since the most recent census, which recorded a population of 1,467 in 2020.
The average household income in Castleton-on-Hudson is $89,326 with a poverty rate of 11.74%. The median age in Castleton-on-Hudson is 42 years: 42.1 years for males, and 42 years for females.