Gainesboro, TN -- U.S. town in Tennessee Population (2000): 879 Housing Units (2000): 430 Land area (2000): 1.562676 sq. miles (4.047311 sq. km) Water area (2000): 0.260932 sq. miles (0.675810 sq. km) Total area (2000): 1.823608 sq. miles (4.723121 sq. km) FIPS code: 28420 Located within: Tennessee (TN), FIPS 47 Location: 36.359705 N, 85.654657 W ZIP Codes (1990): 38562 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gainesboro, TN Gainesboro