Demographics Table
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 Rank
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties) 
|
|---|---|---|---|---|
| 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 07/14/2025 8:12 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.
Created by statecancerprofiles.cancer.gov on 07/14/2025 8:12 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.