
Unionville
- County:
- Chester County
- County Seat:
- No
- Area (mi²):
- 2.568
- State:
- Pennsylvania
Unionville is a CDP located in Chester County, Pennsylvania. Unionville has a 2025 population of 657. Unionville is currently declining at a rate of -2.95% annually but its population has increased by 8.06% since the most recent census, which recorded a population of 608 in 2020.
The average household income in Unionville is $64,756 with a poverty rate of 23.29%. The median age in Unionville is 57.4 years: 57.2 years for males, and 57.8 years for females.