35630 -- U.S. ZIP code Municipality (1990): FLORENCE, Alabama All ZIPs for this municipality (1990): 35630 35633 Population (2000): 30907 Housing Units (2000): 15629 Land area (2000): 24.889888 sq. miles (64.464512 sq. km) Water area (2000): 0.077997 sq. miles (0.202010 sq. km) Total area (2000): 24.967885 sq. miles (64.666522 sq. km) Located within: Alabama (AL) Location: 34.817537 N, 87.662536 W