30725 -- U.S. ZIP code Municipality (1990): FLINTSTONE, Georgia All ZIPs for this municipality (1990): 30725 Population (2000): 3456 Housing Units (2000): 1448 Land area (2000): 14.436424 sq. miles (37.390164 sq. km) Water area (2000): 0.002665 sq. miles (0.006902 sq. km) Total area (2000): 14.439089 sq. miles (37.397066 sq. km) Located within: Georgia (GA) Location: 34.932348 N, 85.350642 W