31537 -- U.S. ZIP code Municipality (1990): FOLKSTON, Georgia All ZIPs for this municipality (1990): 31537 Population (2000): 8804 Housing Units (2000): 3238 Land area (2000): 569.142945 sq. miles (1474.073397 sq. km) Water area (2000): 2.009029 sq. miles (5.203361 sq. km) Total area (2000): 571.151974 sq. miles (1479.276758 sq. km) Located within: Georgia (GA) Location: 30.860915 N, 82.021945 W