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Welcome to White Knob ...

So far, we found very little information about White Knob. The little that we've found leads us believe that the community is historic.<1>

We've added White Knob to our Gazetteer with the hope that we can develop more information. If you can help us with White Knob, please Contact Us.


White Knob would have been located within present day Custer County<2>.

While we don't have a date for the founding of White Knob, you might consider that their post office opened in 1916.

While the community is gone, the present day location for White Knob is 7,430 feet [2,265 m] above sea level.<3> In other words, the elevation of White Knob is about 1½ mile [or ~2¼ km] above sea level.

Time Zone: The area where White Knob was located is in the Mountain Time Zone (MST/MDT) and observes daylight saving time

The Area Codes where White Knob was located: 208 & 986<4>

Communities near White Knob ...

We have created a list of 8 communities that are near White Knob.

  • Mackay
    (3 miles [4.8 km] to the northeast)
  • Moore
    (18 miles [29 km] to the southeast)
  • Lost River
    (14 miles [22.5 km] to the south)
    • Lost River is located in Custer County
    • Jump to our Gazetteer entry for Lost River
    • Population from the 2010 Census: 68 people
  • Alder City ‑ Historic
    (7 miles [11.3 km] to the east)
    • Alder City is located in Custer County
    • Jump to our Gazetteer entry for Alder City
  • Dickey
    (20 miles [32.2 km] to the northwest)
    • Dickey is located in Custer County
    • Jump to our Gazetteer entry for Dickey
  • Lost River
    (20 miles [32.2 km] to the southeast)
    • Lost River is located in Butte County
    • Jump to our Gazetteer entry for Lost River
  • Arco
    (25 miles [40.2 km] to the southeast)
  • Butte City
    (29 miles [46.7 km] to the southeast)
    • Butte City is located in Butte County
    • Jump to our Gazetteer entry for Butte City
    • Population from the 2020 Census: 69 people

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 White Knob. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for White Knob.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of White Knob. 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 White Knob.

Adding White Knob to Our Gazetteer ...

We originally found mention of White Knob in the GNIS. For more information, see the Referenced GNIS Codes section on our Miscellaneous Page.

From our notes, the earliest published mention we've found (so far) for White Knob was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the White Knob post office opened in 1916. The White Knob post office closed in 1934.

For more details, see References and Mentions for White Knob.

Footnotes ...

<1>We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about White Knob, please let us know so that we can improve our accuracy.
<2>If you're interested in how the shape of Idaho's counties, including Custer, have changed over time, we recommend the Atlas of Historical County Boundaries.
<3>The elevation is an estimate for the area around White Knob - it will be higher in some places and lower in others.
<4>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 208 code has been Overlayed with the 986 area code. New phone numbers in the White Knob area will be assigned with one of these codes: 208 or 986. As a result, placing a call in the White Knob area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<6>A copy of the Blevins & Helbock Post Office list with background information can be found at:

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