
Mountain Dale
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 5.793
- State:
- New York
Mountain Dale is a CDP located in Sullivan County, New York. Mountain Dale has a 2025 population of 325. Mountain Dale is currently growing at a rate of 7.26% annually but its population has decreased by -13.79% since the most recent census, which recorded a population of 377 in 2020.
The average household income in Mountain Dale is $69,071 with a poverty rate of 9.56%. The median age in Mountain Dale is 56.5 years: 60.1 years for males, and 48.3 years for females.