Ironton OH ZIP Code
Ironton city is located in Ohio State, Lawrence County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Ironton OH zip code by its streets and block numbers if we have some of the Ironton streets loaded in our website
Ironton Area Code is 740 and Time Zone is Eastern (GMT -05:00).
Ironton Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Ironton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Ironton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Ironton, Ohio.
The Ironton Zip Code is 45638.
If you want to send a mail to Ironton City, you should use the 45638 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Ironton 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 45638 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Ironton 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 Ohio.