Lewistown, MO -- U.S. town in Missouri Population (2000): 595 Housing Units (2000): 309 Land area (2000): 0.450096 sq. miles (1.165744 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.450096 sq. miles (1.165744 sq. km) FIPS code: 41852 Located within: Missouri (MO), FIPS 29 Location: 40.085331 N, 91.812794 W ZIP Codes (1990): 63452 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lewistown, MO Lewistown