Oakdale, LA -- U.S. city in Louisiana Population (2000): 8137 Housing Units (2000): 2512 Land area (2000): 5.074120 sq. miles (13.141911 sq. km) Water area (2000): 0.057084 sq. miles (0.147848 sq. km) Total area (2000): 5.131204 sq. miles (13.289759 sq. km) FIPS code: 56540 Located within: Louisiana (LA), FIPS 22 Location: 30.813371 N, 92.660504 W ZIP Codes (1990): 71463 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Oakdale, LA Oakdale