Colusa IL ZIP Code
Colusa city is located in Illinois State, Hancock County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Colusa IL zip code by its streets and block numbers if we have some of the Colusa streets loaded in our website
Colusa Area Code is 217 and Time Zone is Central (GMT -06:00).
Colusa Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Colusa City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Colusa ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Colusa, Illinois.
The Colusa Zip Code is 62329.
If you want to send a mail to Colusa City, you should use the 62329 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Colusa 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 62329 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Colusa 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.