Unicoi -- U.S. County in Tennessee Population (2000): 17667 Housing Units (2000): 8214 Land area (2000): 186.136428 sq. miles (482.091114 sq. km) Water area (2000): 0.350675 sq. miles (0.908243 sq. km) Total area (2000): 186.487103 sq. miles (482.999357 sq. km) Located within: Tennessee (TN), FIPS 47 Location: 36.138083 N, 82.407927 W Headwords: Unicoi Unicoi, TN Unicoi County Unicoi County, TN