Coudersport is a borough in and the county seat of Potter County, Pennsylvania, United States, located approximately 110 miles (180 km) east by south of Erie on the Allegheny River. The population was 2,546 at the 2010 census.
The Coudersport and Port Allegany Railroad Station, Coudersport Historic District, and Potter County Courthouse are listed on the National Register of Historic Places.
Coudersport is located at 41°46′26″N 78°1′7″W (41.773903, -78.018559).
According to the United States Census Bureau, the borough has a total area of 5.7 square miles (15 km2), all of it land.
Coudersport lies in a broad valley at the joining of the Allegheny River and Mill Creek. It is surrounded by the great hilltop plateaus of the Allegheny highlands. Highways enter north and south on Pennsylvania Route 44, the very old Jersey Shore (log road)Turnpike, and from west to east on U.S. Route 6, the "Grand Army of the Republic Highway", which had been long a major mid-east-states east-west corridor before Interstate highways of the late 1950s. The most noted hilltops, located here on this plateau, are Dutch Hill stretching southeastly, and Vader Hill stretching southwestly. The Allegheny river makes a quick turn at this point, going from North to West; for that reason these features are distinctly individual from afar in the broad turning valley, and rise 2400–2500 feet above sea-level.
As of the census of 2000, there were 2,650 people, 1,101 households, and 700 families residing in the borough. The population density was 467.2 people per square mile (180.5/km²).