Idaho

Custer

4,275
2020 population
1890
first census record
14
census records

About Custer

Custer, Idaho, first appears in the United States federal census in 1890, when it recorded a population of 2,176. At the most recent census, in 2020, its population stood at 4,275.

Its recorded population peaked at 4,368 in 2010, and has since declined by roughly 2 percent.

On the ground today, 2 documented military engagements have been recorded within the county, among them Sheepeater War – Challis Operations, Sheepeater War — Surrender at Challis (October 1879), and 38 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20204,275
20104,368
20004,342
19904,133
19803,385
19702,967
19602,996
19503,318
19403,549
19303,162
19203,550
19103,001
19002,049
18902,176
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in Custer

Military engagements that took place in Custer, Idaho.

Sheepeater War – Challis Operations
1879
Sheepeater War — Surrender at Challis (October 1879)
1879

Historic places in Custer

National Register of Historic Places listings in Custer, Idaho.

Buster Meat Market
Challis
Idaho Rocky Mountain Club
Stanley
Challis Brewery Historic District
Challis
Day, Ivan W., House
Stanley
Chivers, Bill, House
Challis
Chivers, Thomas, House
Challis
Bayhorse
Challis
Chivers, Thomas, Cellar
Challis
Rowles, Donaldson, House
Challis
Challis Cold Storage
Challis
I.O.O.F. Hall
Challis
Twin Peaks Sports
Challis
Custer Historic District
Custer
Mackay Methodist Episcopal Church
Mackay
Browse all Idahohistoric sites ›

Other counties in Idaho

Explore census history and historic records for more Idaho counties.

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Everything a full report reveals about Custer County, Idaho

This page charts the census history of Custer County, Idaho. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Custer

When does Custer first appear in the US census?
Custer, Idaho first appears in the federal census in 1890, with a recorded population of 2,176.
What is the population of Custer?
At the most recent federal census (2020), Custer had a recorded population of 4,275.
When did Custer's population peak?
Custer's recorded population peaked at 4,368 in 2010.
Were any battles fought in Custer?
2 documented military engagements took place in Custer, including Sheepeater War – Challis Operations, Sheepeater War — Surrender at Challis (October 1879).
How many historic places are in Custer?
38 sites are listed on the National Register of Historic Places in Custer, Idaho.
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