Port Costa CA ZIP Code

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Port Costa 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 Port Costa CA zip code by its streets and block numbers if we have some of the Port Costa streets loaded in our website

Port Costa Area Code is 510 and Time Zone is Pacific (GMT -08:00).

Port Costa Zip Code - California

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Port Costa City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Port Costa ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Port Costa, California.

The Port Costa Zip Code is 94569.

If you want to send a mail to Port Costa City, you should use the 94569 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Port Costa 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 94569 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Port Costa 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.

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What is the Port Costa Zip Code?

The Port Costa Zip Code in California is 94569.

ZIP Plus 4 Port Costa - US Streets Zip Codes

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Port Costa, California - US Zip Code

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94569 Zip Code File:
Zip Code: 94569,
City: Port Costa
Port Costa Area Code: 510
Port Costa, CA - Time Zone: Pacific (GMT -08:00)
County: Contra Costa
City Alias: Port Costa
State: California
State Abb: CA

California Zip+4 - Nearby Port Costa Cities

Cities near Port Costa in California
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