
Hardenburgh
- County:
- Ulster County
- County Seat:
- No
- Area (mi²):
- 80.787
- State:
- New York
Hardenburgh is located in Ulster County, New York. Hardenburgh has a 2025 population of 219. Hardenburgh is currently declining at a rate of -0.45% annually and its population has decreased by -1.79% since the most recent census, which recorded a population of 223 in 2020.
The average household income in Hardenburgh is $122,189 with a poverty rate of 4.32%. The median age in Hardenburgh is 69.5 years: 65 years for males, and 70.1 years for females.