Twin Peaks CA ZIP Code
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Twin Peaks city is located in California State, San Bernardino County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Twin Peaks CA zip code by its streets and block numbers if we have some of the Twin Peaks streets loaded in our website
Twin Peaks Area Code is 909 and Time Zone is Pacific (GMT -08:00).
Twin Peaks Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Twin Peaks City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Twin Peaks ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Twin Peaks, California.
The Twin Peaks Zip Code is 92391.
If you want to send a mail to Twin Peaks City, you should use the 92391 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Twin Peaks 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 92391 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Twin Peaks 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.