63042 -- U.S. ZIP code Municipality (1990): HAZELWOOD, Missouri All ZIPs for this municipality (1990): 63042 Population (2000): 19162 Housing Units (2000): 8810 Land area (2000): 15.635241 sq. miles (40.495086 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 15.635241 sq. miles (40.495086 sq. km) Located within: Missouri (MO) Location: 38.778500 N, 90.370054 W