Weston, MO -- U.S. city in Missouri Population (2000): 1631 Housing Units (2000): 724 Land area (2000): 1.639527 sq. miles (4.246355 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.639527 sq. miles (4.246355 sq. km) FIPS code: 78856 Located within: Missouri (MO), FIPS 29 Location: 39.413370 N, 94.897780 W ZIP Codes (1990): 64098 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Weston, MO Weston