Posen IL ZIP Code
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Posen 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 Posen IL zip code by its streets and block numbers if we have some of the Posen streets loaded in our website
Posen Area Code is 708 and Time Zone is Central (GMT -06:00).
Posen Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Posen City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Posen ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Posen, Illinois.
The Posen Zip Code is 60469.
If you want to send a mail to Posen City, you should use the 60469 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Posen 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 60469 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Posen 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.