Cities in Custer County, Idaho by Population (2024)

There are 5 cities in Custer County, Idaho.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
2024 Population
2020 Population
Annual Change
Density (/mi²)
Area (mi²)
Type
Challis19348941.08%4732.0City
Mackay24924442.5%5680.9City
Moore31801632.27%6340.3City
Stanley41191170%2190.5City
Clayton51090%1560.1City

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Custer County, Idaho?

Challis is the largest city in Custer County.

What is the smallest city in Custer County, Idaho?

Clayton is the smallest city in Custer County.

How many cities are in Custer County?

There are 5 cities in Custer County, Idaho.

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