Simpson, LA -- U.S. village in Louisiana Population (2000): 583 Housing Units (2000): 267 Land area (2000): 6.209618 sq. miles (16.082835 sq. km) Water area (2000): 0.012014 sq. miles (0.031116 sq. km) Total area (2000): 6.221632 sq. miles (16.113951 sq. km) FIPS code: 70595 Located within: Louisiana (LA), FIPS 22 Location: 31.256010 N, 93.018519 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Simpson, LA Simpson