Atascadero CA ZIP Code
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Atascadero city is located in California State, San Luis Obispo County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Atascadero CA zip code by its streets and block numbers if we have some of the Atascadero streets loaded in our website
Atascadero Area Code is 805 and Time Zone is Pacific (GMT -08:00).
Atascadero Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Atascadero City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Atascadero ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Atascadero, California.
The Atascadero Zip Code is 93422, 93423.
If you want to send a mail to Atascadero City, you should use the 93422, 93423 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Atascadero 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 93422, 93423 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Atascadero 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.