Rockford IL ZIP Code

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


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


Rockford Area Code is 815/779 and Time Zone is Central (GMT -06:00).



Rockford Zip Code - Illinois

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


The Rockford Zip Code is 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126.



If you want to send a mail to Rockford City, you should use the 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126 Zip Code.


In 1983, the U.S. Postal Service introduced an expanded Rockford 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 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rockford 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.


Rockford, Illinois - MAP



What is the Rockford Zip Code?

The Rockford Zip Code in Illinois is 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126.


ZIP Plus 4 Rockford - US Streets Zip Codes

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


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Search Rockford Zip Code

What is the zip code for Rockford IL?

61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126

Rockford, Illinois - US Zip Code



Rockford ZIP Code Lookup

61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126 Zip Code File:
Zip Code: 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61112, 61114, 61125, 61126,
City: Rockford
Rockford Area Code: 815/779
Rockford, IL - Time Zone: Central (GMT -06:00)
County: Winnebago
City Alias: Rockford, Rockford, Rockford, Machesney Pk, Machesney Park, Rockford, Rockford, Rockford, Rockford, Rockford, Morristown, New Milford, Rockford, Rockford, Rockford, Rockford, Rockford, Rockford
State: Illinois
State Abb: IL



Illinois Zip+4 - Nearby Rockford Cities

Cities near Rockford in Illinois
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View more Illinois zip codes



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