St. Joseph, LA -- U.S. town in Louisiana Population (2000): 1340 Housing Units (2000): 607 Land area (2000): 0.890223 sq. miles (2.305666 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.890223 sq. miles (2.305666 sq. km) FIPS code: 67495 Located within: Louisiana (LA), FIPS 22 Location: 31.918513 N, 91.238284 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: St. Joseph, LA St. Joseph