Gonzales, LA -- U.S. city in Louisiana Population (2000): 8156 Housing Units (2000): 3332 Land area (2000): 8.372197 sq. miles (21.683891 sq. km) Water area (2000): 0.062238 sq. miles (0.161195 sq. km) Total area (2000): 8.434435 sq. miles (21.845086 sq. km) FIPS code: 29850 Located within: Louisiana (LA), FIPS 22 Location: 30.227128 N, 90.919771 W ZIP Codes (1990): 70737 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gonzales, LA Gonzales