
Clinton County
- State:
- Pennsylvania
- County Seat:
- Lock Haven
Clinton County's estimated 2025 population is 37,269 with a growth rate of -0.45% in the past year according to the most recent United States census data. Clinton County is the 55th largest county in Pennsylvania. The 2010 population was 39,262 and has seen a growth of -5.08% since that time.