31554 -- U.S. ZIP code Municipality (1990): NICHOLLS, Georgia All ZIPs for this municipality (1990): 31554 Population (2000): 5719 Housing Units (2000): 2061 Land area (2000): 220.942073 sq. miles (572.237318 sq. km) Water area (2000): 0.320261 sq. miles (0.829473 sq. km) Total area (2000): 221.262334 sq. miles (573.066791 sq. km) Located within: Georgia (GA) Location: 31.495983 N, 82.629282 W