Superior, AZ -- U.S. town in Arizona Population (2000): 3254 Housing Units (2000): 1470 Land area (2000): 1.931569 sq. miles (5.002741 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.931569 sq. miles (5.002741 sq. km) FIPS code: 71300 Located within: Arizona (AZ), FIPS 04 Location: 33.288943 N, 111.103931 W ZIP Codes (1990): 85273 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Superior, AZ Superior