Fayetteville is a city in and the county seat of Cumberland County, North Carolina, United States. It is best known as the home of Fort Liberty, …Fayetteville is a city in and the county seat of Cumberland County, North Carolina, United States. It is best known as the home of Fort Liberty, a major U.S. Army installation northwest of the city. Fayetteville has received the All-America City Award from the National Civic League three times. As of the 2020 census, it had a population of 208,501, It is the 6th-most populous city in North Carolina. Fayetteville is in the Sandhills in the western part of the Coastal Plain region, on the Cape Fear River.