
Lock Haven
- County:
- Clinton County
- County Seat:
- Yes
- Area (mi²):
- 2.496
- State:
- Pennsylvania
Lock Haven is a city located in Clinton County, Pennsylvania. Lock Haven has a 2025 population of 8,699. It is also the county seat of Clinton County. Lock Haven is currently growing at a rate of 1.41% annually and its population has increased by 7.49% since the most recent census, which recorded a population of 8,093 in 2020.
The average household income in Lock Haven is $58,190 with a poverty rate of 24.97%. The median age in Lock Haven is 26.6 years: 26.6 years for males, and 26.8 years for females.