Fairfax CA ZIP Code
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Fairfax city is located in California State, Marin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Fairfax CA zip code by its streets and block numbers if we have some of the Fairfax streets loaded in our website
Fairfax Area Code is 415 and Time Zone is Pacific (GMT -08:00).
Fairfax Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Fairfax City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Fairfax ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Fairfax, California.
The Fairfax Zip Code is 94930, 94978.
If you want to send a mail to Fairfax City, you should use the 94930, 94978 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Fairfax 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 94930, 94978 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Fairfax 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.