Carbon County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 65,249. Its county seat is Jim Thorpe, which was founded in 1818 as "Mauch Chunk", a company town of the Lehigh Coal & Navigation Company (LC&N) along a new wagon road the company was constructing nine miles long to their coal mine, in the area now known as Summit Hill. LC&N also constructed the Lehigh Canal navigations during this time in the area.