30445 -- U.S. ZIP code Municipality (1990): MOUNT VERNON, Georgia All ZIPs for this municipality (1990): 30445 Population (2000): 3307 Housing Units (2000): 1192 Land area (2000): 60.593568 sq. miles (156.936615 sq. km) Water area (2000): 0.081896 sq. miles (0.212109 sq. km) Total area (2000): 60.675464 sq. miles (157.148724 sq. km) Located within: Georgia (GA) Location: 32.186824 N, 82.591710 W