30511 -- U.S. ZIP code Municipality (1990): BALDWIN, Georgia All ZIPs for this municipality (1990): 30511 Population (2000): 2689 Housing Units (2000): 1092 Land area (2000): 29.027134 sq. miles (75.179929 sq. km) Water area (2000): 0.041224 sq. miles (0.106769 sq. km) Total area (2000): 29.068358 sq. miles (75.286698 sq. km) Located within: Georgia (GA) Location: 34.469971 N, 83.500351 W