Irondale MO ZIP Code
Irondale city is located in Missouri State, Washington County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Irondale MO zip code by its streets and block numbers if we have some of the Irondale streets loaded in our website
Irondale Area Code is 573 and Time Zone is Central (GMT -06:00).
Irondale Zip Code - Missouri
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Irondale City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Irondale ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Irondale, Missouri.
The Irondale Zip Code is 63648.
If you want to send a mail to Irondale City, you should use the 63648 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Irondale 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 63648 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Irondale 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.