High Quality Content by WIKIPEDIA articles! Potter County is a county located in the U.S. state of Pennsylvania. It is in the Allegheny Plateau region. As of 2010, the population was 17,457. Its county seat is Coudersport. Potter County was named after James Potter, who was a general from Pennsylvania in the Continental Army during the American Revolution. Though it is named for him, James Potter never actually lived in Potter County and may have never even visited the area.