Oak Brook IL ZIP Code


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Oak Brook city is located in Illinois State, Dupage County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Oak Brook IL zip code by its streets and block numbers if we have some of the Oak Brook streets loaded in our website

Oak Brook Area Code is 630/708/847/773/224 and Time Zone is Central (GMT -06:00).



Oak Brook Zip Code - Illinois

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Oak Brook City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Oak Brook ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Oak Brook, Illinois.

The Oak Brook Zip Code is 60523.



If you want to send a mail to Oak Brook City, you should use the 60523 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Oak Brook 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 60523 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Oak Brook 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.


Oak Brook, Illinois - MAP



What is the Oak Brook Zip Code?

The Oak Brook Zip Code in Illinois is 60523.


ZIP Plus 4 Oak Brook - US Streets Zip Codes

By pressing keys ctrol + F you can search Oak Brook zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Oak Brook Zip Code

What is the zip code for Oak Brook IL?

60523

Oak Brook, Illinois - US Zip Code



Oak Brook ZIP Code Lookup

60523 Zip Code File:
Zip Code: 60523,
City: Oak Brook
Oak Brook Area Code: 630/708/847/773/224
Oak Brook, IL - Time Zone: Central (GMT -06:00)
County: Dupage
City Alias: Oak Brook, Hinsdale
State: Illinois
State Abb: IL



Illinois Zip+4 - Nearby Oak Brook Cities

Cities near Oak Brook in Illinois
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View more Illinois zip codes