
Thomaston
- County:
- Knox County
- County Seat:
- No
- Area (mi²):
- 10.93
- State:
- Maine
Thomaston is located in Knox County, Maine. Thomaston has a 2025 population of 2,708. Thomaston is currently declining at a rate of -0.88% annually and its population has decreased by -1.17% since the most recent census, which recorded a population of 2,740 in 2020.
The average household income in Thomaston is $64,749 with a poverty rate of 8.44%. The median age in Thomaston is 57.7 years: 43.8 years for males, and 63.3 years for females.