Guerneville CA ZIP Code
Guerneville 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 Guerneville CA zip code by its streets and block numbers if we have some of the Guerneville streets loaded in our website
Guerneville Area Code is 707 and Time Zone is Pacific (GMT -08:00).
Guerneville Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Guerneville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Guerneville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Guerneville, California.
The Guerneville Zip Code is 95446.
If you want to send a mail to Guerneville City, you should use the 95446 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Guerneville 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 95446 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Guerneville 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.