# Counties in West Virginia by population aged 18 to 64, 2025

All 55 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_18_64_share`
- Unit: %
- Definition: Residents aged 18 to 64 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 18 to 64 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 18 to 64 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-18-64/west-virginia-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Monongalia County | 69.1 |
| 2 | Gilmer County | 66 |
| 3 | Doddridge County | 61.3 |
| 4 | Jefferson County | 60.8 |
| 5 | Cabell County | 60.4 |
| 6 | Berkeley County | 60.4 |
| 7 | McDowell County | 59.4 |
| 8 | Preston County | 59.4 |
| 9 | Pleasants County | 58.9 |
| 10 | Marion County | 58.8 |
| 11 | Taylor County | 58.5 |
| 12 | Putnam County | 57.6 |
| 13 | Randolph County | 57.5 |
| 14 | Ohio County | 57.5 |
| 15 | Kanawha County | 57.3 |
| 16 | Lewis County | 57.1 |
| 17 | Harrison County | 57.1 |
| 18 | Upshur County | 56.9 |
| 19 | Barbour County | 56.9 |
| 20 | Wood County | 56.8 |
| 21 | Raleigh County | 56.6 |
| 22 | Logan County | 56.5 |
| 23 | Wayne County | 56.4 |
| 24 | Brooke County | 56.4 |
| 25 | Morgan County | 56.3 |
| 26 | Lincoln County | 56.2 |
| 27 | Hancock County | 56.2 |
| 28 | Hardy County | 56.1 |
| 29 | Roane County | 56.1 |
| 30 | Jackson County | 55.8 |
| 31 | Mercer County | 55.8 |
| 32 | Mineral County | 55.7 |
| 33 | Boone County | 55.7 |
| 34 | Fayette County | 55.6 |
| 35 | Mingo County | 55.5 |
| 36 | Marshall County | 55.5 |
| 37 | Wyoming County | 55.5 |
| 38 | Mason County | 55.4 |
| 39 | Hampshire County | 55.4 |
| 40 | Summers County | 55.3 |
| 41 | Nicholas County | 54.8 |
| 42 | Clay County | 54.7 |
| 43 | Ritchie County | 54.7 |
| 44 | Braxton County | 54.6 |
| 45 | Tucker County | 54.2 |
| 46 | Grant County | 54.2 |
| 47 | Greenbrier County | 54.2 |
| 48 | Wetzel County | 54.1 |
| 49 | Wirt County | 54 |
| 50 | Monroe County | 53.6 |
| 51 | Webster County | 53.4 |
| 52 | Calhoun County | 53.4 |
| 53 | Pocahontas County | 53.3 |
| 54 | Tyler County | 53.3 |
| 55 | Pendleton County | 50.1 |