Coudersport is a borough in Potter County, Pennsylvania, 110 miles (180 km) east by south of Erie on the Allegheny River. The populations were these: 1,530 in 1890; 3,217 in 1900; and 3,100 in 1910. The population was 2,650 at the 2000 census. It is the county seat of Potter County.
Coudersport is located at 41°46′26″N 78°1′7″W / 41.77389°N 78.01861°W / 41.77389; -78.01861 (41.773903, -78.018559).
According to the United States Census Bureau, the borough has a total area of 5.7 square miles (14.7 km²), all of it land.