35135 -- U.S. ZIP code Municipality (1990): RIVERSIDE, Alabama All ZIPs for this municipality (1990): 35135 Population (2000): 1436 Housing Units (2000): 748 Land area (2000): 7.252413 sq. miles (18.783662 sq. km) Water area (2000): 0.086925 sq. miles (0.225135 sq. km) Total area (2000): 7.339338 sq. miles (19.008797 sq. km) Located within: Alabama (AL) Location: 33.614465 N, 86.200678 W