what county is calumet city, il
Calumet City, Illinois. Calumet City (/kÃ¦l.juËËmÉt/ kal-yew-MET) is a city in Cook County, Illinois, United States. The population was 37,042 at the 2010 census, a decline of 5.2% from 2000. The ZIP code is 60409.