31568 -- U.S. ZIP code Municipality (1990): WHITE OAK, Georgia All ZIPs for this municipality (1990): 31568 Population (2000): 1008 Housing Units (2000): 490 Land area (2000): 110.772757 sq. miles (286.900112 sq. km) Water area (2000): 0.381326 sq. miles (0.987629 sq. km) Total area (2000): 111.154083 sq. miles (287.887741 sq. km) Located within: Georgia (GA) Location: 31.003385 N, 81.795123 W