Belvidere IL ZIP Code
Belvidere city is located in Illinois State, Boone County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Belvidere IL zip code by its streets and block numbers if we have some of the Belvidere streets loaded in our website
Belvidere Area Code is 815/779 and Time Zone is Central (GMT -06:00).
Belvidere Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Belvidere City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Belvidere ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Belvidere, Illinois.
The Belvidere Zip Code is 61008.
If you want to send a mail to Belvidere City, you should use the 61008 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Belvidere 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 61008 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Belvidere 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.