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Home >> State of Idaho >> Custer County  

Welcome to Custer County ...

Time Zone: Custer County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Challis is the Seat for Custer County.

Custer County was founded in 1881. Custer was created by taking area from Alturas and Lemhi Counties.

From the Census Estimates for 2019, <1> Custer had a population of 4,315 people. This is a decrease of 0.96% since the last Census (which gave a population of 4,357 people in 2010).

At the time of the 2010 Census, Custer represented 0.28% of the total population of Idaho.

Below are some of the communities located in Custer County:

  • Challis
    (20 miles [32.2 km] to the north)
    • Challis is located in Custer County (ID)
    • Jump to our Gazetteer entry for Challis
    • Population from the 2020 Census: 1,066 people
    • Jump to TripAdvisor's Tourism page for Challis <2>
  • Clayton
    (13 miles [20.9 km] to the west)
  • Mackay
    (33 miles [53.1 km] to the southeast)
    • Mackay is located in Custer County (ID)
    • Jump to our Gazetteer entry for Mackay
    • Population from the 2020 Census: 493 people
    • Jump to TripAdvisor's Tourism page for Mackay <2>
  • Stanley
    (39 miles [62.8 km] to the west)

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.