Alamo CA ZIP Code
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Alamo city is located in California State, Contra Costa County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Alamo CA zip code by its streets and block numbers if we have some of the Alamo streets loaded in our website
Alamo Area Code is 925 and Time Zone is Pacific (GMT -08:00).
Alamo Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Alamo City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Alamo ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Alamo, California.
The Alamo Zip Code is 94507.
If you want to send a mail to Alamo City, you should use the 94507 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Alamo 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 94507 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Alamo 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.