60556 -- U.S. ZIP code Municipality (1990): WATERMAN, Illinois All ZIPs for this municipality (1990): 60556 Population (2000): 1797 Housing Units (2000): 681 Land area (2000): 47.213566 sq. miles (122.282570 sq. km) Water area (2000): 0.011640 sq. miles (0.030147 sq. km) Total area (2000): 47.225206 sq. miles (122.312717 sq. km) Located within: Illinois (IL) Location: 41.768498 N, 88.775395 W