
Thompsonville
- County Seat:
- No
- Area (mi²):
- 2.035
- State:
- Connecticut
Thompsonville is a CDP located in . Thompsonville has a 2025 population of 7,977. Thompsonville is currently declining at a rate of -0.5% annually and its population has decreased by -6.84% since the most recent census, which recorded a population of 8,563 in 2020.
The average household income in Thompsonville is $80,147 with a poverty rate of 16.29%. The median age in Thompsonville is 36.9 years: 34.8 years for males, and 41.3 years for females.