Port William OH ZIP Code
Port William city is located in Ohio State, Clinton County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Port William OH zip code by its streets and block numbers if we have some of the Port William streets loaded in our website
Port William Area Code is 937/740 and Time Zone is Eastern (GMT -05:00).
Port William Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Port William City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Port William ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Port William, Ohio.
The Port William Zip Code is 45164.
If you want to send a mail to Port William City, you should use the 45164 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Port William 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 45164 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Port William 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.