
Hermitage
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 29.46
- State:
- Pennsylvania
Hermitage is a city located in Mercer County, Pennsylvania. Hermitage has a 2025 population of 15,709. Hermitage is currently declining at a rate of -0.68% annually and its population has decreased by -3.29% since the most recent census, which recorded a population of 16,243 in 2020.
The average household income in Hermitage is $90,832 with a poverty rate of 10.06%. The median age in Hermitage is 49.1 years: 47.9 years for males, and 50.6 years for females.