60409 -- U.S. ZIP code Municipality (1990): CALUMET CITY, Illinois All ZIPs for this municipality (1990): 60409 Population (2000): 39065 Housing Units (2000): 15960 Land area (2000): 6.930971 sq. miles (17.951133 sq. km) Water area (2000): 0.048386 sq. miles (0.125318 sq. km) Total area (2000): 6.979357 sq. miles (18.076451 sq. km) Located within: Illinois (IL) Location: 41.614188 N, 87.546389 W