Overton -- U.S. County in Tennessee Population (2000): 20118 Housing Units (2000): 9168 Land area (2000): 433.380978 sq. miles (1122.451532 sq. km) Water area (2000): 1.434591 sq. miles (3.715574 sq. km) Total area (2000): 434.815569 sq. miles (1126.167106 sq. km) Located within: Tennessee (TN), FIPS 47 Location: 36.352386 N, 85.303052 W Headwords: Overton Overton, TN Overton County Overton County, TN