
Thompson
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 84.089
- State:
- New York
Thompson is located in Sullivan County, New York. Thompson has a 2025 population of 16,555. Thompson is currently declining at a rate of -0.36% annually but its population has increased by 0.02% since the most recent census, which recorded a population of 16,551 in 2020.
The average household income in Thompson is $95,858 with a poverty rate of 20.46%. The median age in Thompson is 39.7 years: 37.6 years for males, and 41.8 years for females.