Oak Hill OH ZIP Code
Oak Hill city is located in Ohio State, Jackson County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Oak Hill OH zip code by its streets and block numbers if we have some of the Oak Hill streets loaded in our website
Oak Hill Area Code is 740 and Time Zone is Eastern (GMT -05:00).
Oak Hill Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Oak Hill City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Oak Hill ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Oak Hill, Ohio.
The Oak Hill Zip Code is 45656.
If you want to send a mail to Oak Hill City, you should use the 45656 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Oak Hill 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 45656 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Oak Hill 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.