Liberty, KY -- U.S. city in Kentucky Population (2000): 1850 Housing Units (2000): 979 Land area (2000): 1.745621 sq. miles (4.521138 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.745621 sq. miles (4.521138 sq. km) FIPS code: 46072 Located within: Kentucky (KY), FIPS 21 Location: 37.321195 N, 84.930513 W ZIP Codes (1990): 42539 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Liberty, KY Liberty