
Thermopolis
- County:
- Hot Springs County
- County Seat:
- Yes
- Area (mi²):
- 2.387
- State:
- Wyoming
Thermopolis is a town located in Hot Springs County, Wyoming. Thermopolis has a 2025 population of 2,755. It is also the county seat of Hot Springs County. Thermopolis is currently growing at a rate of 0.25% annually and its population has increased by 1.21% since the most recent census, which recorded a population of 2,722 in 2020.
The average household income in Thermopolis is $78,014 with a poverty rate of 15%. The median age in Thermopolis is 46 years: 45.5 years for males, and 46.1 years for females.