Du Bois IL ZIP Code
Du Bois city is located in Illinois State, Washington County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Du Bois IL zip code by its streets and block numbers if we have some of the Du Bois streets loaded in our website
Du Bois Area Code is 618 and Time Zone is Central (GMT -06:00).
Du Bois Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Du Bois City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Du Bois ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Du Bois, Illinois.
The Du Bois Zip Code is 62831.
If you want to send a mail to Du Bois City, you should use the 62831 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Du Bois 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 62831 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Du Bois 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.