Armstrong MO ZIP Code
Armstrong city is located in Missouri State, Howard County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Armstrong MO zip code by its streets and block numbers if we have some of the Armstrong streets loaded in our website
Armstrong Area Code is 660 and Time Zone is Central (GMT -06:00).
Armstrong Zip Code - Missouri
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Armstrong City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Armstrong ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Armstrong, Missouri.
The Armstrong Zip Code is 65230.
If you want to send a mail to Armstrong City, you should use the 65230 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Armstrong 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 65230 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Armstrong 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.