Oakdale IL ZIP Code
Oakdale 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 Oakdale IL zip code by its streets and block numbers if we have some of the Oakdale streets loaded in our website
Oakdale Area Code is 618 and Time Zone is Central (GMT -06:00).
Oakdale Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Oakdale City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Oakdale ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Oakdale, Illinois.
The Oakdale Zip Code is 62268.
If you want to send a mail to Oakdale City, you should use the 62268 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Oakdale 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 62268 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Oakdale 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.