30457 -- U.S. ZIP code Municipality (1990): SOPERTON, Georgia All ZIPs for this municipality (1990): 30457 Population (2000): 6368 Housing Units (2000): 2688 Land area (2000): 183.441572 sq. miles (475.111471 sq. km) Water area (2000): 1.139413 sq. miles (2.951067 sq. km) Total area (2000): 184.580985 sq. miles (478.062538 sq. km) Located within: Georgia (GA) Location: 32.387041 N, 82.582720 W