Vandalia, MO -- U.S. city in Missouri Population (2000): 2529 Housing Units (2000): 1343 Land area (2000): 2.262486 sq. miles (5.859812 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.262486 sq. miles (5.859812 sq. km) FIPS code: 75688 Located within: Missouri (MO), FIPS 29 Location: 39.307388 N, 91.489105 W ZIP Codes (1990): 63382 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Vandalia, MO Vandalia