62947 -- U.S. ZIP code Municipality (1990): HEROD, Illinois All ZIPs for this municipality (1990): 62947 Population (2000): 597 Housing Units (2000): 308 Land area (2000): 68.805569 sq. miles (178.205598 sq. km) Water area (2000): 0.143986 sq. miles (0.372921 sq. km) Total area (2000): 68.949555 sq. miles (178.578519 sq. km) Located within: Illinois (IL) Location: 37.567779 N, 88.399251 W