Clintonville
- County:
- Venango County
- County Seat:
- No
- Area (mi²):
- 1.091
- State:
- Pennsylvania
Clintonville is a borough located in Venango County, Pennsylvania. Clintonville has a 2026 population of 429. Clintonville is currently declining at a rate of 0% annually and its population has decreased by -2.05% since the most recent census, which recorded a population of 438 in 2020.
The median household income in Clintonville is $47,083 with a poverty rate of 10.18%. The median age in Clintonville is 42 years: 41.7 years for males, and 42.6 years for females. For every 100 females there are 83.8 males.