30501 -- U.S. ZIP code Municipality (1990): GAINESVILLE, Georgia All ZIPs for this municipality (1990): 30501 30504 30506 30507 Population (2000): 29349 Housing Units (2000): 10055 Land area (2000): 21.731784 sq. miles (56.285060 sq. km) Water area (2000): 0.067056 sq. miles (0.173675 sq. km) Total area (2000): 21.798840 sq. miles (56.458735 sq. km) Located within: Georgia (GA) Location: 34.306643 N, 83.823526 W