60180 -- U.S. ZIP code Municipality (1990): UNION, Illinois All ZIPs for this municipality (1990): 60180 Population (2000): 1743 Housing Units (2000): 615 Land area (2000): 20.793913 sq. miles (53.855984 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 20.793913 sq. miles (53.855984 sq. km) Located within: Illinois (IL) Location: 42.229437 N, 88.526062 W