61834 -- U.S. ZIP code Population (2000): 7843 Housing Units (2000): 2471 Land area (2000): 100.306676 sq. miles (259.793088 sq. km) Water area (2000): 0.220771 sq. miles (0.571795 sq. km) Total area (2000): 100.527447 sq. miles (260.364883 sq. km) Located within: Illinois (IL) Location: 40.175463 N, 87.612408 W