Castaic CA ZIP Code

Castaic city is located in California State, Los Angeles County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Castaic CA zip code by its streets and block numbers if we have some of the Castaic streets loaded in our website

Castaic Area Code is 661/805 and Time Zone is Pacific (GMT -08:00).



Castaic Zip Code - California

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

The Castaic Zip Code is 91310, 91384.



If you want to send a mail to Castaic City, you should use the 91310, 91384 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Castaic 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 91310, 91384 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Castaic 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.


Castaic, California - MAP




What is the Castaic Zip Code?

The Castaic Zip Code in California is 91310, 91384.


ZIP Plus 4 Castaic - US Streets Zip Codes

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Search Castaic Zip Code

What is the zip code for Castaic CA?

91310, 91384

Castaic, California - US Zip Code



Castaic ZIP Code Lookup

91310, 91384 Zip Code File:
Zip Code: 91310, 91384,
City: Castaic
Castaic Area Code: 661/805
Castaic, CA - Time Zone: Pacific (GMT -08:00)
County: Los Angeles
City Alias: Santa Clarita, Castaic, Castaic, Val Verde, Santa Clarita
State: California
State Abb: CA



California Zip+4 - Nearby Castaic Cities

Cities near Castaic in California
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