31642 -- U.S. ZIP code Municipality (1990): PEARSON, Georgia All ZIPs for this municipality (1990): 31642 Population (2000): 4315 Housing Units (2000): 1749 Land area (2000): 175.834791 sq. miles (455.409999 sq. km) Water area (2000): 3.690873 sq. miles (9.559318 sq. km) Total area (2000): 179.525664 sq. miles (464.969317 sq. km) Located within: Georgia (GA) Location: 31.272910 N, 82.833424 W