Clarkton, MO -- U.S. city in Missouri Population (2000): 1330 Housing Units (2000): 598 Land area (2000): 1.125107 sq. miles (2.914013 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.125107 sq. miles (2.914013 sq. km) FIPS code: 14212 Located within: Missouri (MO), FIPS 29 Location: 36.450899 N, 89.967853 W ZIP Codes (1990): 63837 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Clarkton, MO Clarkton