Mckinleyville CA ZIP Code
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Mckinleyville city is located in California State, Humboldt County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mckinleyville CA zip code by its streets and block numbers if we have some of the Mckinleyville streets loaded in our website
Mckinleyville Area Code is 707 and Time Zone is Pacific (GMT -08:00).
Mckinleyville Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mckinleyville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mckinleyville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mckinleyville, California.
The Mckinleyville Zip Code is 95519.
If you want to send a mail to Mckinleyville City, you should use the 95519 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mckinleyville 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 95519 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mckinleyville 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.