62643 -- U.S. ZIP code Municipality (1990): HARTSBURG, Illinois All ZIPs for this municipality (1990): 62643 Population (2000): 442 Housing Units (2000): 175 Land area (2000): 13.453019 sq. miles (34.843158 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 13.453019 sq. miles (34.843158 sq. km) Located within: Illinois (IL) Location: 40.247835 N, 89.441238 W