31792 -- U.S. ZIP code Municipality (1990): THOMASVILLE, Georgia All ZIPs for this municipality (1990): 31792 Population (2000): 22898 Housing Units (2000): 9936 Land area (2000): 213.208398 sq. miles (552.207193 sq. km) Water area (2000): 1.512287 sq. miles (3.916806 sq. km) Total area (2000): 214.720685 sq. miles (556.123999 sq. km) Located within: Georgia (GA) Location: 30.817654 N, 83.989194 W