Rio Frio TX ZIP Code
Rio Frio city is located in Texas State, Real County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Rio Frio TX zip code by its streets and block numbers if we have some of the Rio Frio streets loaded in our website
Rio Frio Area Code is 830 and Time Zone is Central (GMT -06:00).
Rio Frio Zip Code - Texas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rio Frio City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rio Frio ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rio Frio, Texas.
The Rio Frio Zip Code is 78879.
If you want to send a mail to Rio Frio City, you should use the 78879 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rio Frio 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 78879 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rio Frio 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 Texas.