Green Castle MO ZIP Code
Green Castle city is located in Missouri State, Sullivan County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Green Castle MO zip code by its streets and block numbers if we have some of the Green Castle streets loaded in our website
Green Castle Area Code is 660 and Time Zone is Central (GMT -06:00).
Green Castle Zip Code - Missouri
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Green Castle City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Green Castle ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Green Castle, Missouri.
The Green Castle Zip Code is 63544.
If you want to send a mail to Green Castle City, you should use the 63544 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Green Castle 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 63544 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Green Castle 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 Missouri.