San Marino CA ZIP Code
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San Marino city is located in California State, Los Angeles County and has a unique zip code assigned by the US Postal Service Office.
You can search for the San Marino CA zip code by its streets and block numbers if we have some of the San Marino streets loaded in our website
San Marino Area Code is 626/323 and Time Zone is Pacific (GMT -08:00).
San Marino Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the San Marino City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the San Marino ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in San Marino, California.
The San Marino Zip Code is 91108, 91118.
If you want to send a mail to San Marino City, you should use the 91108, 91118 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded San Marino 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 91108, 91118 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a San Marino 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.