30678 -- U.S. ZIP code Municipality (1990): WHITE PLAINS, Georgia All ZIPs for this municipality (1990): 30678 Population (2000): 1077 Housing Units (2000): 538 Land area (2000): 68.677033 sq. miles (177.872691 sq. km) Water area (2000): 0.046616 sq. miles (0.120735 sq. km) Total area (2000): 68.723649 sq. miles (177.993426 sq. km) Located within: Georgia (GA) Location: 33.461710 N, 83.058525 W