Hazelwood, MO -- U.S. city in Missouri Population (2000): 26206 Housing Units (2000): 11433 Land area (2000): 15.883503 sq. miles (41.138083 sq. km) Water area (2000): 0.944355 sq. miles (2.445867 sq. km) Total area (2000): 16.827858 sq. miles (43.583950 sq. km) FIPS code: 31276 Located within: Missouri (MO), FIPS 29 Location: 38.778750 N, 90.366464 W ZIP Codes (1990): 63042 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Hazelwood, MO Hazelwood