Morgantown is a city in and the county seat of Monongalia County, West Virginia, situated along the banks of the Monongahela River. With a permanent population of 31,073 per the 2015 U.S. Census estimates, Morgantown is the largest city in North-Central West Virginia. The Morgantown metropolitan area has a population of 138,176, and is the 3rd largest in West Virginia. West Virginia University adds several thousand seasonal residents to the city and surrounding area from September through May. Morgantown is best known as the home of West Virginia University and the Morgantown Personal Rapid Transit system.