Dellwood, MO -- U.S. city in Missouri Population (2000): 5255 Housing Units (2000): 1978 Land area (2000): 1.028730 sq. miles (2.664398 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.028730 sq. miles (2.664398 sq. km) FIPS code: 19018 Located within: Missouri (MO), FIPS 29 Location: 38.758250 N, 90.274461 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Dellwood, MO Dellwood