Mexico, MO -- U.S. city in Missouri Population (2000): 11320 Housing Units (2000): 5301 Land area (2000): 11.369149 sq. miles (29.445960 sq. km) Water area (2000): 0.336305 sq. miles (0.871027 sq. km) Total area (2000): 11.705454 sq. miles (30.316987 sq. km) FIPS code: 47648 Located within: Missouri (MO), FIPS 29 Location: 39.165814 N, 91.884761 W ZIP Codes (1990): 65265 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Mexico, MO Mexico