Demographics Table
Demographic Data Report for Missouri by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| United States | N/A | 22.0 | 73,517,834 | N/A |
| Missouri | N/A | 22.3 | 1,382,679 | 19 of 52 |
| St. Louis County | Urban | 22.0 | 218,904 | 1,478 |
| Jackson County | Urban | 23.3 | 167,759 | 926 |
| St. Charles County | Urban | 22.5 | 93,380 | 1,260 |
| Greene County | Urban | 20.8 | 63,125 | 1,978 |
| Clay County | Urban | 23.5 | 60,745 | 847 |
| St. Louis City | Urban | 18.3 | 52,870 | 2,677 |
| Jefferson County | Urban | 22.5 | 51,633 | 1,260 |
| Boone County | Urban | 20.1 | 37,890 | 2,226 |
| Jasper County | Urban | 24.6 | 30,642 | 514 |
| Cass County | Urban | 23.5 | 25,988 | 847 |
| Platte County | Urban | 23.1 | 25,483 | 1,006 |
| Franklin County | Urban | 22.4 | 23,693 | 1,311 |
| Christian County | Urban | 25.1 | 23,318 | 410 |
| Buchanan County | Urban | 22.3 | 18,644 | 1,356 |
| Cape Girardeau County | Urban | 21.3 | 17,657 | 1,775 |
| Cole County | Urban | 22.1 | 17,011 | 1,441 |
| Lincoln County | Urban | 25.1 | 15,810 | 410 |
| Newton County | Urban | 23.9 | 14,356 | 717 |
| St. Francois County | Rural | 20.9 | 14,011 | 1,936 |
| Johnson County | Rural | 22.1 | 12,108 | 1,441 |
| Taney County | Rural | 20.9 | 11,799 | 1,936 |
| Pulaski County | Rural | 21.9 | 11,784 | 1,525 |
| Webster County | Urban | 27.5 | 11,134 | 152 |
| Pettis County | Rural | 25.1 | 10,887 | 410 |
| Lawrence County | Rural | 25.4 | 9,809 | 340 |
| Butler County | Rural | 23.3 | 9,780 | 926 |
| Howell County | Rural | 24.1 | 9,741 | 657 |
| Phelps County | Rural | 21.1 | 9,537 | 1,869 |
| Callaway County | Urban | 20.7 | 9,258 | 2,021 |
| Scott County | Rural | 24.0 | 9,098 | 690 |
| Laclede County | Rural | 24.6 | 8,953 | 514 |
| Warren County | Urban | 23.1 | 8,595 | 1,006 |
| Barry County | Rural | 22.8 | 7,996 | 1,133 |
| Lafayette County | Urban | 23.0 | 7,607 | 1,057 |
| Polk County | Urban | 23.4 | 7,595 | 889 |
| Camden County | Rural | 17.2 | 7,489 | 2,858 |
| Dunklin County | Rural | 26.0 | 7,151 | 255 |
| Marion County | Rural | 24.0 | 6,834 | 690 |
| Stoddard County | Rural | 22.1 | 6,289 | 1,441 |
| McDonald County | Rural | 25.5 | 6,037 | 321 |
| Miller County | Rural | 23.2 | 5,869 | 962 |
| Audrain County | Rural | 22.7 | 5,568 | 1,174 |
| Texas County | Rural | 22.1 | 5,564 | 1,441 |
| Washington County | Rural | 23.5 | 5,526 | 847 |
| Randolph County | Rural | 22.1 | 5,392 | 1,441 |
| Stone County | Rural | 16.7 | 5,360 | 2,918 |
| Ray County | Urban | 22.8 | 5,271 | 1,133 |
| Saline County | Rural | 22.0 | 5,102 | 1,478 |
| Crawford County | Rural | 22.2 | 5,062 | 1,395 |
| Henry County | Rural | 22.3 | 4,976 | 1,356 |
| Clinton County | Urban | 23.2 | 4,963 | 962 |
| Morgan County | Rural | 22.8 | 4,958 | 1,133 |
| Wright County | Rural | 25.8 | 4,900 | 280 |
| Adair County | Rural | 18.7 | 4,740 | 2,601 |
| Vernon County | Rural | 23.8 | 4,694 | 748 |
| Perry County | Rural | 22.5 | 4,275 | 1,260 |
| Dallas County | Urban | 23.6 | 4,143 | 809 |
| Andrew County | Urban | 22.4 | 4,052 | 1,311 |
| Pike County | Rural | 22.5 | 3,977 | 1,260 |
| Ste. Genevieve County | Rural | 21.4 | 3,973 | 1,735 |
| Pemiscot County | Rural | 26.1 | 3,909 | 245 |
| Moniteau County | Urban | 25.4 | 3,877 | 340 |
| Cooper County | Urban | 22.3 | 3,750 | 1,356 |
| New Madrid County | Rural | 23.7 | 3,724 | 778 |
| Bates County | Urban | 22.8 | 3,689 | 1,133 |
| Nodaway County | Rural | 17.0 | 3,530 | 2,883 |
| Cedar County | Rural | 24.0 | 3,510 | 690 |
| Macon County | Rural | 23.1 | 3,500 | 1,006 |
| Benton County | Rural | 17.3 | 3,486 | 2,848 |
| Dent County | Rural | 22.6 | 3,279 | 1,220 |
| Livingston County | Rural | 21.6 | 3,107 | 1,650 |
| Osage County | Urban | 22.7 | 3,043 | 1,174 |
| Gasconade County | Rural | 20.2 | 2,983 | 2,193 |
| Madison County | Rural | 23.3 | 2,966 | 926 |
| Douglas County | Rural | 23.1 | 2,768 | 1,006 |
| Linn County | Rural | 23.3 | 2,764 | 926 |
| Barton County | Rural | 23.4 | 2,739 | 889 |
| Mississippi County | Rural | 22.6 | 2,688 | 1,220 |
| Ripley County | Rural | 24.1 | 2,585 | 657 |
| Grundy County | Rural | 25.9 | 2,533 | 269 |
| Montgomery County | Rural | 21.9 | 2,504 | 1,525 |
| Bollinger County | Urban | 21.7 | 2,296 | 1,613 |
| Ralls County | Rural | 21.2 | 2,206 | 1,816 |
| Howard County | Urban | 21.2 | 2,155 | 1,816 |
| DeKalb County | Urban | 19.8 | 2,152 | 2,323 |
| Wayne County | Rural | 19.6 | 2,132 | 2,372 |
| Lewis County | Rural | 21.2 | 2,108 | 1,816 |
| Daviess County | Rural | 24.8 | 2,101 | 473 |
| Caldwell County | Urban | 23.5 | 2,100 | 847 |
| St. Clair County | Rural | 21.3 | 2,038 | 1,775 |
| Oregon County | Rural | 23.2 | 2,008 | 962 |
| Harrison County | Rural | 24.3 | 1,991 | 602 |
| Iron County | Rural | 21.0 | 1,983 | 1,910 |
| Monroe County | Rural | 21.9 | 1,916 | 1,525 |
| Carroll County | Rural | 21.9 | 1,842 | 1,525 |
| Maries County | Rural | 20.6 | 1,737 | 2,055 |
| Chariton County | Rural | 23.2 | 1,718 | 962 |
| Ozark County | Rural | 19.0 | 1,687 | 2,544 |
| Shannon County | Rural | 22.7 | 1,627 | 1,174 |
| Gentry County | Rural | 25.8 | 1,613 | 280 |
| Clark County | Rural | 23.9 | 1,595 | 717 |
| Dade County | Rural | 20.8 | 1,589 | 1,978 |
| Hickory County | Rural | 17.3 | 1,488 | 2,848 |
| Shelby County | Rural | 24.0 | 1,434 | 690 |
| Scotland County | Rural | 29.9 | 1,399 | 72 |
| Sullivan County | Rural | 22.3 | 1,309 | 1,356 |
| Carter County | Rural | 24.3 | 1,286 | 602 |
| Reynolds County | Rural | 19.0 | 1,141 | 2,544 |
| Schuyler County | Rural | 27.5 | 1,111 | 152 |
| Atchison County | Rural | 20.9 | 1,083 | 1,936 |
| Putnam County | Rural | 22.6 | 1,049 | 1,220 |
| Knox County | Rural | 24.8 | 932 | 473 |
| Holt County | Rural | 20.8 | 882 | 1,978 |
| Mercer County | Rural | 24.5 | 854 | 542 |
| Worth County | Rural | 21.6 | 418 | 1,650 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/29/2026 4:16 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
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.