35404 -- U.S. ZIP code Municipality (1990): HOLT, Alabama All ZIPs for this municipality (1990): 35404 Population (2000): 19085 Housing Units (2000): 8922 Land area (2000): 18.431051 sq. miles (47.736201 sq. km) Water area (2000): 0.045348 sq. miles (0.117450 sq. km) Total area (2000): 18.476399 sq. miles (47.853651 sq. km) Located within: Alabama (AL) Location: 33.217168 N, 87.494619 W