Gretna, FL -- U.S. city in Florida Population (2000): 1709 Housing Units (2000): 553 Land area (2000): 1.884873 sq. miles (4.881798 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.884873 sq. miles (4.881798 sq. km) FIPS code: 27650 Located within: Florida (FL), FIPS 12 Location: 30.615598 N, 84.662457 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gretna, FL Gretna