Collinsville OK ZIP Code
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Collinsville city is located in Oklahoma State, Tulsa County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Collinsville OK zip code by its streets and block numbers if we have some of the Collinsville streets loaded in our website
Collinsville Area Code is 918 and Time Zone is Central (GMT -06:00).
Collinsville Zip Code - Oklahoma
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Collinsville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Collinsville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Collinsville, Oklahoma.
The Collinsville Zip Code is 74021.
If you want to send a mail to Collinsville City, you should use the 74021 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Collinsville 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 74021 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Collinsville 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.