30328 -- U.S. ZIP code Municipality (1990): SANDY SPRINGS, Georgia All ZIPs for this municipality (1990): 30328 Population (2000): 28701 Housing Units (2000): 14494 Land area (2000): 13.022172 sq. miles (33.727270 sq. km) Water area (2000): 0.056822 sq. miles (0.147169 sq. km) Total area (2000): 13.078994 sq. miles (33.874439 sq. km) Located within: Georgia (GA) Location: 33.931746 N, 84.378175 W