Unadilla, GA -- U.S. city in Georgia Population (2000): 2772 Housing Units (2000): 739 Land area (2000): 5.201769 sq. miles (13.472519 sq. km) Water area (2000): 0.009792 sq. miles (0.025362 sq. km) Total area (2000): 5.211561 sq. miles (13.497881 sq. km) FIPS code: 78156 Located within: Georgia (GA), FIPS 13 Location: 32.259796 N, 83.736535 W ZIP Codes (1990): 31091 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Unadilla, GA Unadilla