Westchester IL ZIP Code
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Westchester 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 Westchester IL zip code by its streets and block numbers if we have some of the Westchester streets loaded in our website
Westchester Area Code is 630/708/847/312/815 and Time Zone is Central (GMT -06:00).
Westchester Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Westchester City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Westchester ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Westchester, Illinois.
The Westchester Zip Code is 60154.
If you want to send a mail to Westchester City, you should use the 60154 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Westchester 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 60154 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Westchester 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.