31647 -- U.S. ZIP code Municipality (1990): SPARKS, Georgia All ZIPs for this municipality (1990): 31647 Population (2000): 3061 Housing Units (2000): 1255 Land area (2000): 44.494751 sq. miles (115.240871 sq. km) Water area (2000): 0.628243 sq. miles (1.627141 sq. km) Total area (2000): 45.122994 sq. miles (116.868012 sq. km) Located within: Georgia (GA) Location: 31.183567 N, 83.435592 W