Jefferson County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 44,492. Its county seat is Brookville. The county was established on March 26, 1804, from part of Lycoming County and later organized in... Wikipedia
Cities: Brookville, Reynoldsville, Punxsutawney, and more
County seat: Brookville
Population: 43,794 (2022)
Area: 657 mi²