Alameda CA ZIP Code
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Alameda city is located in California State, Alameda County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Alameda CA zip code by its streets and block numbers if we have some of the Alameda streets loaded in our website
Alameda Area Code is 510 and Time Zone is Pacific (GMT -08:00).
Alameda Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Alameda City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Alameda ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Alameda, California.
The Alameda Zip Code is 94501, 94502.
If you want to send a mail to Alameda City, you should use the 94501, 94502 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Alameda 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 94501, 94502 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Alameda 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.