31638 -- U.S. ZIP code Municipality (1990): MORVEN, Georgia All ZIPs for this municipality (1990): 31638 Population (2000): 926 Housing Units (2000): 387 Land area (2000): 21.364594 sq. miles (55.334043 sq. km) Water area (2000): 0.068025 sq. miles (0.176183 sq. km) Total area (2000): 21.432619 sq. miles (55.510226 sq. km) Located within: Georgia (GA) Location: 30.935087 N, 83.502119 W