Clinton County is a county in the Commonwealth of Pennsylvania. As of the 2022 census, the population was 37,931. Its county seat is Lock Haven. The county was created on June 21, 1839, from parts of Centre and Lycoming Counties. Its name is in honor of the seventh Governor of New York, DeWitt Clinton. Some alternate sources suggest the namesake is Henry Clinton. Clinton County comprises the Lock Haven, PA Micropolitan Statistical Area, which is also included in the Williamsport-Lock Haven, PA Combined Statistical Area.
