Cainsville, MO -- U.S. city in Missouri Population (2000): 370 Housing Units (2000): 216 Land area (2000): 1.374247 sq. miles (3.559282 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.374247 sq. miles (3.559282 sq. km) FIPS code: 10342 Located within: Missouri (MO), FIPS 29 Location: 40.438992 N, 93.772723 W ZIP Codes (1990): 64632 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Cainsville, MO Cainsville