Calexico, CA -- U.S. city in California Population (2000): 27109 Housing Units (2000): 6983 Land area (2000): 6.227086 sq. miles (16.128079 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 6.227086 sq. miles (16.128079 sq. km) FIPS code: 09710 Located within: California (CA), FIPS 06 Location: 32.678246 N, 115.497997 W ZIP Codes (1990): 92231 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Calexico, CA Calexico