Mad River CA ZIP Code
Mad River city is located in California State, Trinity County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mad River CA zip code by its streets and block numbers if we have some of the Mad River streets loaded in our website
Mad River Area Code is 707 and Time Zone is Pacific (GMT -08:00).
Mad River Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mad River City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mad River ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mad River, California.
The Mad River Zip Code is 95552.
If you want to send a mail to Mad River City, you should use the 95552 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mad River 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 95552 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mad River 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 California.