Rio Grande OH ZIP Code
Rio Grande city is located in Ohio State, Gallia County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Rio Grande OH zip code by its streets and block numbers if we have some of the Rio Grande streets loaded in our website
Rio Grande Area Code is 740 and Time Zone is Eastern (GMT -05:00).
Rio Grande Zip Code - Ohio
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rio Grande City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rio Grande ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rio Grande, Ohio.
The Rio Grande Zip Code is 45674.
If you want to send a mail to Rio Grande City, you should use the 45674 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rio Grande 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 45674 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rio Grande 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.