Macomb IL ZIP Code
Macomb city is located in Illinois State, Mcdonough County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Macomb IL zip code by its streets and block numbers if we have some of the Macomb streets loaded in our website
Macomb Area Code is 309 and Time Zone is Central (GMT -06:00).
Macomb Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Macomb City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Macomb ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Macomb, Illinois.
The Macomb Zip Code is 61455.
If you want to send a mail to Macomb City, you should use the 61455 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Macomb 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 61455 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Macomb 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.