31319 -- U.S. ZIP code Municipality (1990): MERIDIAN, Georgia All ZIPs for this municipality (1990): 31319 Population (2000): 123 Housing Units (2000): 55 Land area (2000): 3.421231 sq. miles (8.860947 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.421231 sq. miles (8.860947 sq. km) Located within: Georgia (GA) Location: 31.478486 N, 81.345283 W