60406 -- U.S. ZIP code Municipality (1990): BLUE ISLAND, Illinois All ZIPs for this municipality (1990): 60406 Population (2000): 25370 Housing Units (2000): 9683 Land area (2000): 5.694879 sq. miles (14.749669 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 5.694879 sq. miles (14.749669 sq. km) Located within: Illinois (IL) Location: 41.656592 N, 87.681544 W