Greenfield OK ZIP Code
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Greenfield city is located in Oklahoma State, Blaine County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Greenfield OK zip code by its streets and block numbers if we have some of the Greenfield streets loaded in our website
Greenfield Area Code is 405 and Time Zone is Central (GMT -06:00).
Greenfield Zip Code - Oklahoma
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Greenfield City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Greenfield ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Greenfield, Oklahoma.
The Greenfield Zip Code is 73043.
If you want to send a mail to Greenfield City, you should use the 73043 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Greenfield 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 73043 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Greenfield 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.