31315 -- U.S. ZIP code Population (2000): 9419 Housing Units (2000): 2546 Land area (2000): 3.643722 sq. miles (9.437197 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.643722 sq. miles (9.437197 sq. km) Located within: Georgia (GA) Location: 31.886944 N, 81.601091 W