Newcastle OK ZIP Code
Newcastle city is located in Oklahoma State, Mcclain County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Newcastle OK zip code by its streets and block numbers if we have some of the Newcastle streets loaded in our website
Newcastle Area Code is 405 and Time Zone is Central (GMT -06:00).
Newcastle Zip Code - Oklahoma
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Newcastle City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Newcastle ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Newcastle, Oklahoma.
The Newcastle Zip Code is 73065.
If you want to send a mail to Newcastle City, you should use the 73065 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Newcastle 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 73065 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Newcastle 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.