# Counties in Kansas by population under 18, 2025

All 105 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_0_17_share`
- Unit: %
- Definition: Residents aged 0 to 17 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/population-under-18/kansas-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Geary County | 30.9 |
| 2 | Seward County | 29.9 |
| 3 | Ford County | 29.8 |
| 4 | Haskell County | 28.7 |
| 5 | Grant County | 28.5 |
| 6 | Hamilton County | 28.4 |
| 7 | Gray County | 28.4 |
| 8 | Kearny County | 28.3 |
| 9 | Pottawatomie County | 28.1 |
| 10 | Finney County | 28 |
| 11 | Wichita County | 27.5 |
| 12 | Wallace County | 27 |
| 13 | Gove County | 26.9 |
| 14 | Stevens County | 26.6 |
| 15 | Stanton County | 26.3 |
| 16 | Meade County | 26 |
| 17 | Wyandotte County | 26 |
| 18 | Nemaha County | 25.8 |
| 19 | Logan County | 25.7 |
| 20 | Greeley County | 25.5 |
| 21 | Scott County | 25.2 |
| 22 | Bourbon County | 25 |
| 23 | Jackson County | 24.9 |
| 24 | Anderson County | 24.8 |
| 25 | Stafford County | 24.7 |
| 26 | Washington County | 24.6 |
| 27 | Labette County | 24.5 |
| 28 | Harper County | 24.5 |
| 29 | Comanche County | 24.4 |
| 30 | Kiowa County | 24.2 |
| 31 | Brown County | 24.1 |
| 32 | Butler County | 23.9 |
| 33 | Cheyenne County | 23.9 |
| 34 | Hodgeman County | 23.7 |
| 35 | Sedgwick County | 23.7 |
| 36 | Rawlins County | 23.6 |
| 37 | Lane County | 23.6 |
| 38 | Sherman County | 23.5 |
| 39 | Cowley County | 23.5 |
| 40 | Barton County | 23.5 |
| 41 | Sheridan County | 23.5 |
| 42 | Neosho County | 23.5 |
| 43 | Mitchell County | 23.3 |
| 44 | Sumner County | 23.3 |
| 45 | Thomas County | 23.2 |
| 46 | Pratt County | 23.2 |
| 47 | Wilson County | 23.1 |
| 48 | Rice County | 23.1 |
| 49 | Ottawa County | 23.1 |
| 50 | Leavenworth County | 23 |
| 51 | Miami County | 23 |
| 52 | Edwards County | 23 |
| 53 | Dickinson County | 22.9 |
| 54 | Cloud County | 22.9 |
| 55 | Harvey County | 22.9 |
| 56 | Chautauqua County | 22.8 |
| 57 | Marshall County | 22.7 |
| 58 | Cherokee County | 22.7 |
| 59 | Wabaunsee County | 22.6 |
| 60 | Crawford County | 22.6 |
| 61 | Coffey County | 22.5 |
| 62 | Johnson County | 22.4 |
| 63 | Morton County | 22.4 |
| 64 | Osage County | 22.4 |
| 65 | Linn County | 22.3 |
| 66 | Clark County | 22.3 |
| 67 | Republic County | 22.1 |
| 68 | Shawnee County | 22.1 |
| 69 | Kingman County | 22.1 |
| 70 | Osborne County | 22 |
| 71 | Phillips County | 22 |
| 72 | Barber County | 21.9 |
| 73 | Franklin County | 21.9 |
| 74 | Montgomery County | 21.9 |
| 75 | Saline County | 21.9 |
| 76 | Russell County | 21.7 |
| 77 | Doniphan County | 21.7 |
| 78 | Morris County | 21.7 |
| 79 | Lincoln County | 21.6 |
| 80 | Allen County | 21.6 |
| 81 | Lyon County | 21.6 |
| 82 | Clay County | 21.5 |
| 83 | Marion County | 21.5 |
| 84 | Decatur County | 21.4 |
| 85 | Jefferson County | 21.3 |
| 86 | McPherson County | 21.2 |
| 87 | Reno County | 21.2 |
| 88 | Rooks County | 21.2 |
| 89 | Smith County | 20.9 |
| 90 | Atchison County | 20.9 |
| 91 | Ness County | 20.7 |
| 92 | Woodson County | 20.6 |
| 93 | Graham County | 20.5 |
| 94 | Trego County | 20.4 |
| 95 | Jewell County | 20.1 |
| 96 | Norton County | 20 |
| 97 | Greenwood County | 20 |
| 98 | Elk County | 19.6 |
| 99 | Chase County | 19.5 |
| 100 | Ellis County | 19.4 |
| 101 | Rush County | 19.3 |
| 102 | Pawnee County | 19.2 |
| 103 | Ellsworth County | 18.2 |
| 104 | Douglas County | 17.1 |
| 105 | Riley County | 16.3 |