# Counties in West Virginia by population under 18, 2025

All 55 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/west-virginia-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Berkeley County | 22.8 |
| 2 | Mingo County | 21.5 |
| 3 | Jackson County | 21.5 |
| 4 | Clay County | 21.3 |
| 5 | Lincoln County | 21.1 |
| 6 | Wetzel County | 20.9 |
| 7 | Mercer County | 20.7 |
| 8 | Harrison County | 20.6 |
| 9 | Wayne County | 20.5 |
| 10 | Barbour County | 20.5 |
| 11 | Putnam County | 20.4 |
| 12 | Wirt County | 20.4 |
| 13 | Tyler County | 20.4 |
| 14 | Lewis County | 20.4 |
| 15 | Mason County | 20.4 |
| 16 | Raleigh County | 20.3 |
| 17 | Monroe County | 20.3 |
| 18 | Mineral County | 20.3 |
| 19 | Jefferson County | 20.3 |
| 20 | Logan County | 20.2 |
| 21 | Wood County | 20 |
| 22 | Boone County | 20 |
| 23 | Upshur County | 20 |
| 24 | Fayette County | 19.9 |
| 25 | Wyoming County | 19.8 |
| 26 | Grant County | 19.6 |
| 27 | Calhoun County | 19.6 |
| 28 | Hardy County | 19.4 |
| 29 | Marion County | 19.3 |
| 30 | Ritchie County | 19.1 |
| 31 | Nicholas County | 19 |
| 32 | Cabell County | 19 |
| 33 | Kanawha County | 18.9 |
| 34 | Taylor County | 18.8 |
| 35 | Hampshire County | 18.8 |
| 36 | Greenbrier County | 18.6 |
| 37 | Webster County | 18.6 |
| 38 | Roane County | 18.4 |
| 39 | Marshall County | 18.4 |
| 40 | Ohio County | 18.2 |
| 41 | Randolph County | 18.2 |
| 42 | Preston County | 18.1 |
| 43 | Braxton County | 17.9 |
| 44 | Pleasants County | 17.9 |
| 45 | McDowell County | 17.7 |
| 46 | Pendleton County | 17.6 |
| 47 | Pocahontas County | 17.6 |
| 48 | Hancock County | 17.5 |
| 49 | Tucker County | 17 |
| 50 | Doddridge County | 16.9 |
| 51 | Morgan County | 16.9 |
| 52 | Summers County | 16.5 |
| 53 | Brooke County | 16.2 |
| 54 | Monongalia County | 16 |
| 55 | Gilmer County | 15.2 |