Coolville OH ZIP Code
Coolville city is located in Ohio State, Athens County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Coolville OH zip code by its streets and block numbers if we have some of the Coolville streets loaded in our website
Coolville Area Code is 740 and Time Zone is Eastern (GMT -05:00).
Coolville Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Coolville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Coolville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Coolville, Ohio.
The Coolville Zip Code is 45723.
If you want to send a mail to Coolville City, you should use the 45723 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Coolville 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 45723 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Coolville 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.