30529 -- U.S. ZIP code Municipality (1990): COMMERCE, Georgia All ZIPs for this municipality (1990): 30529 Population (2000): 9111 Housing Units (2000): 3837 Land area (2000): 54.699504 sq. miles (141.671060 sq. km) Water area (2000): 0.116812 sq. miles (0.302541 sq. km) Total area (2000): 54.816316 sq. miles (141.973601 sq. km) Located within: Georgia (GA) Location: 34.210423 N, 83.468424 W