La Plata, MO -- U.S. city in Missouri Population (2000): 1486 Housing Units (2000): 702 Land area (2000): 1.219042 sq. miles (3.157304 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.219042 sq. miles (3.157304 sq. km) FIPS code: 40682 Located within: Missouri (MO), FIPS 29 Location: 40.024013 N, 92.492279 W ZIP Codes (1990): 63549 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: La Plata, MO La Plata