Joliet IL ZIP Code
Joliet city is located in Illinois State, Will County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Joliet IL zip code by its streets and block numbers if we have some of the Joliet streets loaded in our website
Joliet Area Code is 815/779 and Time Zone is Central (GMT -06:00).
Joliet Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Joliet City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Joliet ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Joliet, Illinois.
The Joliet Zip Code is 60431, 60432, 60433, 60434, 60435, 60436.
If you want to send a mail to Joliet City, you should use the 60431, 60432, 60433, 60434, 60435, 60436 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Joliet 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 60431, 60432, 60433, 60434, 60435, 60436 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Joliet 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.