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Demographic Data Report for Missouri by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2017-2021 American Community Survey 5-Year Data
Sorted by Count
County
 sort alphabetically by name ascending
Value (Percent)
 sort by value descending
People (Age Under 18)
 sort by sample size descending
Rank within US
(of 3143 counties)
 sort by rank descending
Missouri 22.7 1,392,375 23 of 52
United States 22.5 74,234,075 N/A
Worth County 20.2 405 2,338
Mercer County 23.9 850 874
Holt County 20.7 887 2,198
Knox County 23.8 901 899
Schuyler County 26.0 1,065 336
Putnam County 23.2 1,095 1,156
Atchison County 20.8 1,107 2,141
Reynolds County 18.8 1,153 2,700
Carter County 21.6 1,158 1,879
Scotland County 29.2 1,389 116
Sullivan County 23.6 1,427 982
Hickory County 17.5 1,472 2,895
Shelby County 24.5 1,491 659
Gentry County 24.7 1,536 609
Dade County 20.8 1,575 2,166
Shannon County 22.0 1,580 1,687
Clark County 24.9 1,655 547
Ozark County 19.4 1,680 2,557
Chariton County 22.9 1,701 1,300
Maries County 20.6 1,738 2,233
St. Clair County 20.5 1,890 2,262
Carroll County 22.6 1,937 1,431
Monroe County 22.4 1,939 1,487
Harrison County 24.6 2,021 643
Iron County 21.5 2,067 1,910
Oregon County 23.6 2,099 979
Caldwell County 24.1 2,134 782
Daviess County 25.7 2,168 384
DeKalb County 18.6 2,170 2,726
Ralls County 21.5 2,220 1,911
Lewis County 22.3 2,233 1,567
Howard County 22.1 2,246 1,622
Bollinger County 21.7 2,337 1,809
Wayne County 20.7 2,338 2,178
Grundy County 25.0 2,471 527
Montgomery County 22.3 2,540 1,543
Ripley County 23.8 2,622 928
Douglas County 22.2 2,624 1,590
Barton County 23.8 2,790 900
Mississippi County 21.5 2,790 1,915
Linn County 23.9 2,858 865
Madison County 23.6 2,972 990
Osage County 22.8 3,055 1,320
Gasconade County 20.8 3,083 2,147
Livingston County 21.7 3,250 1,838
Dent County 22.9 3,335 1,312
Benton County 17.3 3,356 2,910
Cedar County 24.3 3,441 720
Nodaway County 16.0 3,454 3,029
Macon County 23.5 3,581 1,018
Bates County 24.0 3,863 813
Cooper County 22.2 3,867 1,587
New Madrid County 23.5 3,922 1,008
Moniteau County 25.0 3,931 514
Ste. Genevieve County 21.6 3,969 1,895
Pike County 22.9 4,134 1,290
Dallas County 24.5 4,147 665
Pemiscot County 26.1 4,165 324
Andrew County 23.4 4,216 1,081
Perry County 23.6 4,481 998
Adair County 18.3 4,638 2,786
Wright County 26.1 4,761 328
Henry County 22.0 4,809 1,694
Vernon County 24.5 4,867 647
Morgan County 23.3 4,874 1,105
Clinton County 23.6 4,980 981
Stone County 16.6 5,163 2,978
Ray County 22.8 5,267 1,330
Crawford County 22.7 5,272 1,380
Texas County 21.3 5,308 1,967
Saline County 23.1 5,377 1,206
Randolph County 21.8 5,425 1,777
Washington County 23.4 5,578 1,053
Audrain County 23.0 5,804 1,246
Miller County 23.8 5,861 920
McDonald County 25.3 5,882 469
Stoddard County 22.2 6,390 1,607
Marion County 23.7 6,780 940
Polk County 23.2 7,325 1,157
Dunklin County 26.1 7,463 327
Lafayette County 23.4 7,660 1,085
Camden County 18.0 7,748 2,832
Barry County 22.8 7,916 1,319
Warren County 23.6 8,258 1,000
Laclede County 25.1 9,001 508
Scott County 24.2 9,241 730
Callaway County 21.3 9,473 1,978
Phelps County 21.3 9,501 1,999
Howell County 24.2 9,630 727
Lawrence County 25.8 9,819 377
Butler County 23.7 10,034 948
Webster County 27.3 10,640 205
Pettis County 25.1 10,783 501
Johnson County 21.6 11,651 1,865
Pulaski County 22.0 11,761 1,678
Taney County 21.3 11,871 2,003
Newton County 24.0 14,055 825
St. Francois County 21.3 14,300 1,987
Lincoln County 25.6 15,048 403
Cole County 22.4 17,347 1,497
Cape Girardeau County 21.7 17,565 1,839
Buchanan County 22.7 19,380 1,413
Christian County 25.5 22,404 422
Franklin County 23.0 24,017 1,240
Platte County 23.8 25,012 924
Cass County 24.1 25,803 772
Jasper County 25.1 30,594 509
Boone County 20.6 37,472 2,229
Jefferson County 23.2 52,419 1,164
St. Louis City 19.0 57,487 2,658
Clay County 24.2 60,460 748
Greene County 21.0 62,217 2,099
St. Charles County 23.3 93,754 1,120
Jackson County 23.7 168,801 963
St. Louis County 22.2 222,848 1,579
Notes:
Created by statecancerprofiles.cancer.gov on 04/18/2024 5:01 pm.
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.

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