31786 -- U.S. ZIP code Municipality (1990): SHELLMAN, Georgia All ZIPs for this municipality (1990): 31786 Population (2000): 1594 Housing Units (2000): 658 Land area (2000): 67.190087 sq. miles (174.021519 sq. km) Water area (2000): 0.604302 sq. miles (1.565135 sq. km) Total area (2000): 67.794389 sq. miles (175.586654 sq. km) Located within: Georgia (GA) Location: 31.729520 N, 84.601736 W