Liberty, MO -- U.S. city in Missouri Population (2000): 26232 Housing Units (2000): 9973 Land area (2000): 26.952833 sq. miles (69.807515 sq. km) Water area (2000): 0.057506 sq. miles (0.148939 sq. km) Total area (2000): 27.010339 sq. miles (69.956454 sq. km) FIPS code: 42032 Located within: Missouri (MO), FIPS 29 Location: 39.240852 N, 94.426502 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Liberty, MO Liberty