31401 -- U.S. ZIP code Municipality (1990): SAVANNAH, Georgia All ZIPs for this municipality (1990): 31401 31405 31406 31409 31410 31411 Population (2000): 21616 Housing Units (2000): 10790 Land area (2000): 6.841394 sq. miles (17.719129 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 6.841394 sq. miles (17.719129 sq. km) Located within: Georgia (GA) Location: 32.068658 N, 81.092583 W