# Counties in Missouri by population aged 18 to 64, 2025

All 115 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/missouri-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Pulaski County | 66.7 |
| 2 | St. Louis city | 66.2 |
| 3 | Boone County | 64.9 |
| 4 | Adair County | 64.1 |
| 5 | Johnson County | 61.9 |
| 6 | Greene County | 61.6 |
| 7 | Phelps County | 61.2 |
| 8 | Nodaway County | 60.8 |
| 9 | Jackson County | 60.7 |
| 10 | Clay County | 60.5 |
| 11 | Platte County | 60.4 |
| 12 | St. Francois County | 60.4 |
| 13 | Callaway County | 59.9 |
| 14 | Randolph County | 59.5 |
| 15 | Cape Girardeau County | 59.5 |
| 16 | Saline County | 59.4 |
| 17 | St. Charles County | 59.4 |
| 18 | Jefferson County | 59.3 |
| 19 | Lincoln County | 58.9 |
| 20 | Buchanan County | 58.9 |
| 21 | Jasper County | 58.8 |
| 22 | Cole County | 58.7 |
| 23 | Lewis County | 58.4 |
| 24 | McDonald County | 58.1 |
| 25 | Mississippi County | 57.9 |
| 26 | Washington County | 57.7 |
| 27 | Cass County | 57.7 |
| 28 | Warren County | 57.7 |
| 29 | Howard County | 57.6 |
| 30 | St. Louis County | 57.3 |
| 31 | Osage County | 57.3 |
| 32 | Christian County | 57 |
| 33 | DeKalb County | 56.8 |
| 34 | Butler County | 56.7 |
| 35 | Lafayette County | 56.7 |
| 36 | Franklin County | 56.7 |
| 37 | Cooper County | 56.7 |
| 38 | Marion County | 56.6 |
| 39 | Ray County | 56.6 |
| 40 | Madison County | 56.5 |
| 41 | Livingston County | 56.5 |
| 42 | Pike County | 56.5 |
| 43 | Pettis County | 56.3 |
| 44 | Clinton County | 56.3 |
| 45 | Scott County | 56.2 |
| 46 | Perry County | 56.2 |
| 47 | Polk County | 56.1 |
| 48 | Stoddard County | 56.1 |
| 49 | Sullivan County | 56.1 |
| 50 | Moniteau County | 56 |
| 51 | Laclede County | 56 |
| 52 | Taney County | 55.9 |
| 53 | Newton County | 55.9 |
| 54 | Texas County | 55.7 |
| 55 | Montgomery County | 55.7 |
| 56 | Webster County | 55.7 |
| 57 | Maries County | 55.5 |
| 58 | Miller County | 55.5 |
| 59 | Bates County | 55.4 |
| 60 | Ste. Genevieve County | 55.3 |
| 61 | Reynolds County | 55.3 |
| 62 | Iron County | 55.3 |
| 63 | Lawrence County | 55.1 |
| 64 | Andrew County | 55.1 |
| 65 | Vernon County | 55.1 |
| 66 | Ralls County | 55 |
| 67 | Audrain County | 55 |
| 68 | Caldwell County | 55 |
| 69 | Crawford County | 54.9 |
| 70 | New Madrid County | 54.9 |
| 71 | Barton County | 54.7 |
| 72 | Howell County | 54.6 |
| 73 | Dallas County | 54.6 |
| 74 | Dunklin County | 54.5 |
| 75 | Barry County | 53.9 |
| 76 | Dent County | 53.9 |
| 77 | Linn County | 53.8 |
| 78 | Bollinger County | 53.8 |
| 79 | Carroll County | 53.7 |
| 80 | Henry County | 53.7 |
| 81 | Dade County | 53.6 |
| 82 | Pemiscot County | 53.6 |
| 83 | Wright County | 53.5 |
| 84 | Macon County | 53 |
| 85 | Atchison County | 53 |
| 86 | Gasconade County | 52.9 |
| 87 | Daviess County | 52.6 |
| 88 | Clark County | 52.6 |
| 89 | Ozark County | 52.5 |
| 90 | St. Clair County | 52.4 |
| 91 | Wayne County | 52.2 |
| 92 | Morgan County | 52.2 |
| 93 | Camden County | 52.2 |
| 94 | Carter County | 52.1 |
| 95 | Gentry County | 52.1 |
| 96 | Knox County | 52 |
| 97 | Ripley County | 52 |
| 98 | Holt County | 52 |
| 99 | Shelby County | 51.8 |
| 100 | Cedar County | 51.8 |
| 101 | Harrison County | 51.7 |
| 102 | Monroe County | 51.5 |
| 103 | Worth County | 51.3 |
| 104 | Grundy County | 51.2 |
| 105 | Shannon County | 51.1 |
| 106 | Chariton County | 50.9 |
| 107 | Oregon County | 50.7 |
| 108 | Benton County | 50.6 |
| 109 | Putnam County | 50.5 |
| 110 | Mercer County | 50.3 |
| 111 | Douglas County | 50.2 |
| 112 | Stone County | 50 |
| 113 | Schuyler County | 49.5 |
| 114 | Scotland County | 49.5 |
| 115 | Hickory County | 46.5 |