Dewey OK ZIP Code
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Dewey city is located in Oklahoma State, Washington County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Dewey OK zip code by its streets and block numbers if we have some of the Dewey streets loaded in our website
Dewey Area Code is 918 and Time Zone is Central (GMT -06:00).
Dewey Zip Code - Oklahoma
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Dewey City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Dewey ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Dewey, Oklahoma.
The Dewey Zip Code is 74029.
If you want to send a mail to Dewey City, you should use the 74029 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Dewey 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 74029 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Dewey 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 Oklahoma.