Fayette County is a county located in the north central portion of the U.S. state of Georgia. As of the 2020 census, the population was 119,194, an increase from 106,567 in 2010. Fayette County was established in 1821. The county seat, Fayetteville, was established in 1823. Much of Fayette County is bordered on the east side by the Flint River.

Fayetteville is a city in and the county seat of Fayette County, Georgia, United States. As of the 2020 census, the city had a population of 18,957, up from 15,945 at the 2010 census. Fayetteville is located 22 miles (35 km) south of downtown Atlanta.