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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 Value

County
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
 sort by value ascending
People (Age Under 18)
 sort by sample size ascending
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
Camas County Rural 33.2 383 26
Jefferson County Urban 32.9 10,592 29
Cassia County Rural 31.2 7,858 51
Franklin County Urban 30.9 4,553 57
Power County Rural 30.4 2,435 71
Bonneville County Urban 30.2 38,360 73
Jerome County Urban 30.0 7,434 76
Bingham County Rural 29.7 14,570 85
Minidoka County Rural 29.2 6,407 100
Clark County Rural 28.9 224 109
Caribou County Rural 27.5 1,956 165
Canyon County Urban 27.2 65,829 183
Bear Lake County Rural 27.1 1,776 187
Gooding County Rural 27.1 4,269 187
Oneida County Rural 26.7 1,250 215
Twin Falls County Urban 26.7 24,607 215
Butte County Urban 26.6 705 228
Lincoln County Rural 26.0 1,373 281
Payette County Rural 25.7 6,719 324
Bannock County Urban 25.4 22,509 378
Owyhee County Urban 25.0 3,068 468
Elmore County Rural 24.5 7,130 572
Fremont County Rural 24.1 3,299 687
Boundary County Rural 23.3 2,962 1,001
Teton County Rural 23.2 2,803 1,042
Kootenai County Urban 22.6 40,103 1,288
Ada County Urban 22.5 114,071 1,340
Washington County Rural 22.5 2,442 1,340
Gem County Urban 22.4 4,440 1,385
Benewah County Rural 22.1 2,189 1,518
Lewis County Rural 22.0 802 1,567
Nez Perce County Urban 21.4 9,093 1,821
Shoshone County Rural 20.8 2,820 2,044
Madison County Rural 20.5 11,001 2,151
Idaho County Rural 19.8 3,385 2,359
Blaine County Rural 19.6 4,815 2,404
Bonner County Rural 19.6 9,704 2,404
Latah County Rural 18.9 7,625 2,581
Valley County Rural 18.4 2,231 2,684
Lemhi County Rural 18.3 1,495 2,702
Adams County Rural 17.1 788 2,892
Boise County Urban 15.4 1,236 3,038
Clearwater County Rural 15.3 1,365 3,042
Custer County Rural 11.1 491 3,129
Notes:
Created by statecancerprofiles.cancer.gov on 07/12/2025 9:52 am.

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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