Calumet City IL ZIP Code
Calumet City city is located in Illinois State, Cook County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Calumet City IL zip code by its streets and block numbers if we have some of the Calumet City streets loaded in our website
Calumet City Area Code is 708 and Time Zone is Central (GMT -06:00).
Calumet City Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Calumet City City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Calumet City ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Calumet City, Illinois.
The Calumet City Zip Code is 60409.
If you want to send a mail to Calumet City City, you should use the 60409 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Calumet City ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 60409 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Calumet City city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Illinois.