Casstown OH ZIP Code
Casstown city is located in Ohio State, Miami County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Casstown OH zip code by its streets and block numbers if we have some of the Casstown streets loaded in our website
Casstown Area Code is 937 and Time Zone is Eastern (GMT -05:00).
Casstown Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Casstown City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Casstown ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Casstown, Ohio.
The Casstown Zip Code is 45312.
If you want to send a mail to Casstown City, you should use the 45312 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Casstown 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 45312 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Casstown 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.