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Demographics Table

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Demographic Data Report for Idaho by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Count

County
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2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
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People (Age Under 18)
 sort by sample size descending
Rank within US
(of 3143 counties)
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Idaho N/A 24.5 463,167 4 of 52
United States N/A 22.2 73,645,238 N/A
Clark County Rural 28.9 224 109
Camas County Rural 33.2 383 26
Custer County Rural 11.1 491 3,129
Butte County Urban 26.6 705 228
Adams County Rural 17.1 788 2,892
Lewis County Rural 22.0 802 1,567
Boise County Urban 15.4 1,236 3,038
Oneida County Rural 26.7 1,250 215
Clearwater County Rural 15.3 1,365 3,042
Lincoln County Rural 26.0 1,373 281
Lemhi County Rural 18.3 1,495 2,702
Bear Lake County Rural 27.1 1,776 187
Caribou County Rural 27.5 1,956 165
Benewah County Rural 22.1 2,189 1,518
Valley County Rural 18.4 2,231 2,684
Power County Rural 30.4 2,435 71
Washington County Rural 22.5 2,442 1,340
Teton County Rural 23.2 2,803 1,042
Shoshone County Rural 20.8 2,820 2,044
Boundary County Rural 23.3 2,962 1,001
Owyhee County Urban 25.0 3,068 468
Fremont County Rural 24.1 3,299 687
Idaho County Rural 19.8 3,385 2,359
Gooding County Rural 27.1 4,269 187
Gem County Urban 22.4 4,440 1,385
Franklin County Urban 30.9 4,553 57
Blaine County Rural 19.6 4,815 2,404
Minidoka County Rural 29.2 6,407 100
Payette County Rural 25.7 6,719 324
Elmore County Rural 24.5 7,130 572
Jerome County Urban 30.0 7,434 76
Latah County Rural 18.9 7,625 2,581
Cassia County Rural 31.2 7,858 51
Nez Perce County Urban 21.4 9,093 1,821
Bonner County Rural 19.6 9,704 2,404
Jefferson County Urban 32.9 10,592 29
Madison County Rural 20.5 11,001 2,151
Bingham County Rural 29.7 14,570 85
Bannock County Urban 25.4 22,509 378
Twin Falls County Urban 26.7 24,607 215
Bonneville County Urban 30.2 38,360 73
Kootenai County Urban 22.6 40,103 1,288
Canyon County Urban 27.2 65,829 183
Ada County Urban 22.5 114,071 1,340
Notes:
Created by statecancerprofiles.cancer.gov on 07/05/2025 3:39 pm.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.

Data for United States does not include Puerto Rico.

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