Lexington, AL -- U.S. town in Alabama Population (2000): 840 Housing Units (2000): 394 Land area (2000): 3.212453 sq. miles (8.320216 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.212453 sq. miles (8.320216 sq. km) FIPS code: 42640 Located within: Alabama (AL), FIPS 01 Location: 34.966115 N, 87.372892 W ZIP Codes (1990): 35648 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lexington, AL Lexington