30454 -- U.S. ZIP code Municipality (1990): ROCKLEDGE, Georgia All ZIPs for this municipality (1990): 30454 Population (2000): 358 Housing Units (2000): 173 Land area (2000): 30.156035 sq. miles (78.103768 sq. km) Water area (2000): 0.217015 sq. miles (0.562067 sq. km) Total area (2000): 30.373050 sq. miles (78.665835 sq. km) Located within: Georgia (GA) Location: 32.432854 N, 82.729798 W