Clearfield County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 80,562. The county seat is Clearfield, and the largest city is DuBois. The county was created in 1804 and later organized in 1822. Clearfield County comprises the DuBois, PA Micropolitan Statistical Area, which is also included in the State College–DuBois, PA Combined Statistical Area. The county is part of the North Central Pennsylvania region of the state.