31750 -- U.S. ZIP code Municipality (1990): FITZGERALD, Georgia All ZIPs for this municipality (1990): 31750 Population (2000): 18604 Housing Units (2000): 8080 Land area (2000): 271.427336 sq. miles (702.993544 sq. km) Water area (2000): 2.693821 sq. miles (6.976965 sq. km) Total area (2000): 274.121157 sq. miles (709.970509 sq. km) Located within: Georgia (GA) Location: 31.720029 N, 83.250932 W