31829 -- U.S. ZIP code Municipality (1990): UPATOI, Georgia All ZIPs for this municipality (1990): 31829 Population (2000): 836 Housing Units (2000): 301 Land area (2000): 13.278102 sq. miles (34.390126 sq. km) Water area (2000): 0.135408 sq. miles (0.350705 sq. km) Total area (2000): 13.413510 sq. miles (34.740831 sq. km) Located within: Georgia (GA) Location: 32.557718 N, 84.739576 W