35118 -- U.S. ZIP code Municipality (1990): SYLVAN SPRINGS, Alabama All ZIPs for this municipality (1990): 35118 Population (2000): 3625 Housing Units (2000): 1502 Land area (2000): 40.563170 sq. miles (105.058123 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 40.563170 sq. miles (105.058123 sq. km) Located within: Alabama (AL) Location: 33.529224 N, 87.015464 W