Healdsburg CA ZIP Code
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Healdsburg city is located in California State, Sonoma County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Healdsburg CA zip code by its streets and block numbers if we have some of the Healdsburg streets loaded in our website
Healdsburg Area Code is 707 and Time Zone is Pacific (GMT -08:00).
Healdsburg Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Healdsburg City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Healdsburg ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Healdsburg, California.
The Healdsburg Zip Code is 95448.
If you want to send a mail to Healdsburg City, you should use the 95448 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Healdsburg 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 95448 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Healdsburg 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.