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Welcome to Clearlake Oaks ...

Clearlake Oaks is located in Lake County<1>.

While we don't have a date for the founding of Clearlake Oaks, you might consider that their post office opened  in 1935.

Clearlake Oaks is 1,330 feet [405 m] above sea level.<2>.

Time Zone: Clearlake Oaks lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Codes for Clearlake Oaks: 707 & 369<3>

The ZIP code for Clearlake Oaks: 95423<4>

Communities near Clearlake Oaks ...

We have created a list of 10 communities that are near Clearlake Oaks.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Clearlake Oaks. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Clearlake Oaks.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Clearlake Oaks. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Clearlake Oaks.

We also have a detailed list of newspapers that have been published in the area around Clearlake Oaks. See our Newspapers Page for Clearlake Oaks.

TripAdvisor Tourism Pages for Clearlake Oaks ...

Looking for more information about Clearlake Oaks? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Clearlake Oaks, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Clearlake Oaks.

Adding Clearlake Oaks to Our Gazetteer ...

We originally found mention of Clearlake Oaks in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Clearlake Oaks was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>

X2X - From that list, the Clearlake Oaks post office opened in 1935.

For more details, see References and Mentions for Clearlake Oaks.

Unfortunately, we don't know of a website for Clearlake Oaks. If you can help, please contact us through our Feedback Page.

The official website for Lake County: www.co.lake.ca.us/

The official website for State of California: https://www.ca.gov/

Footnotes ...

<1>If you're interested in how the shape of California's counties, including Lake, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around Clearlake Oaks - it will be higher in some places and lower in others.
<3>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 707 code has been Overlayed with the 369 area code. New phone numbers in the Clearlake Oaks area will be assigned with one of these codes: 707 or 369. As a result, placing a call in the Clearlake Oaks area will require 10-digit dialing (where you enter both the area code and then the phone number).
<4>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a community (such as Clearlake Oaks). When looking for a ZIP Code, whether Clearlake Oaks or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>An 'estimated' location is one where we have been given GPS coordinates, but are unable to verify the accuracy of those coordinates. That said, we have some confidence that we have placed the marker near the actual location. A typical reason for being unable to verify a location is that it might be on private property or maybe historic and gone without an obvious trace.
<7>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/




 

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This page was last modified/updated: 28 Apr 2025