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Demographic Data Report for Missouri by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2015-2019 American Community Survey 5-Year Data
Sorted by Value
County
 sort alphabetically by name ascending
Value (Percent)
 sort by value descending
People (Age Under 18)
 sort by sample size ascending
Rank within US
(of 3146 counties)
 sort by rank ascending
United States 22.6 73,429,392 N/A
Missouri 22.6 1,381,612 24 of 52
Nodaway County 16.0 3,571 3,041
Stone County 16.7 5,275 2,984
DeKalb County 16.7 2,090 2,983
Hickory County 17.0 1,600 2,954
Benton County 17.4 3,330 2,910
Camden County 18.1 8,209 2,838
Adair County 18.6 4,728 2,745
Atchison County 19.3 1,010 2,595
St. Louis City 19.4 59,819 2,560
St. Clair County 19.5 1,828 2,535
Ozark County 19.9 1,828 2,447
Reynolds County 19.9 1,249 2,446
Maries County 20.1 1,773 2,373
Worth County 20.2 410 2,348
Boone County 20.3 36,059 2,330
Holt County 20.4 903 2,304
Gasconade County 20.7 3,043 2,187
Dade County 20.8 1,573 2,165
Iron County 20.8 2,113 2,152
Greene County 20.9 60,505 2,130
St. Francois County 21.0 13,996 2,089
Mississippi County 21.1 2,858 2,074
Phelps County 21.1 9,410 2,067
Callaway County 21.2 9,514 2,019
Taney County 21.2 11,708 2,003
Ralls County 21.3 2,182 1,978
Cape Girardeau County 21.4 16,810 1,936
Monroe County 21.4 1,849 1,927
Wayne County 21.5 2,831 1,914
Johnson County 21.5 11,552 1,891
Texas County 21.6 5,535 1,832
Cooper County 21.7 3,832 1,799
Douglas County 21.7 2,893 1,777
Ste. Genevieve County 21.8 3,883 1,771
Bollinger County 21.8 2,663 1,760
Pike County 21.9 4,042 1,718
Randolph County 21.9 5,451 1,716
Livingston County 21.9 3,318 1,708
Shannon County 21.9 1,803 1,705
Pulaski County 22.0 11,522 1,686
Howard County 22.0 2,216 1,662
Henry County 22.1 4,804 1,639
St. Louis County 22.1 220,364 1,638
Sullivan County 22.3 1,393 1,542
Montgomery County 22.3 2,563 1,537
Stoddard County 22.4 6,566 1,520
Lewis County 22.5 2,235 1,476
Cole County 22.5 17,244 1,460
Buchanan County 22.7 20,047 1,386
Barry County 22.7 8,054 1,385
Carroll County 22.7 1,994 1,360
Oregon County 22.7 2,421 1,348
Dent County 22.8 3,538 1,342
Ray County 22.8 5,216 1,321
Chariton County 22.8 1,707 1,313
Washington County 22.8 5,671 1,313
Clark County 22.8 1,547 1,306
Madison County 22.9 2,783 1,299
Morgan County 22.9 4,633 1,296
Ripley County 23.0 3,116 1,249
Crawford County 23.0 5,559 1,223
Lafayette County 23.0 7,507 1,216
Andrew County 23.1 4,035 1,201
Franklin County 23.1 23,791 1,197
Osage County 23.1 3,145 1,183
Audrain County 23.1 5,927 1,177
Polk County 23.1 7,338 1,176
Saline County 23.1 5,311 1,175
Putnam County 23.3 1,112 1,116
Grundy County 23.3 2,328 1,096
New Madrid County 23.4 4,103 1,060
Jefferson County 23.4 52,412 1,050
Butler County 23.5 10,039 1,006
St. Charles County 23.6 92,951 989
Dallas County 23.6 3,924 978
Bates County 23.7 3,856 960
Jackson County 23.7 165,044 936
Perry County 23.7 4,550 935
Macon County 23.7 3,607 921
Linn County 23.7 2,876 917
Miller County 23.8 5,991 902
Platte County 23.8 23,949 894
Barton County 23.8 2,809 876
Warren County 23.8 8,213 864
Caldwell County 23.8 2,155 863
Scott County 23.8 9,213 860
Marion County 23.9 6,824 854
Carter County 23.9 1,468 841
Knox County 23.9 943 836
Howell County 23.9 9,600 819
Newton County 24.0 13,977 791
Clinton County 24.1 4,936 779
Cedar County 24.1 3,390 749
Shelby County 24.2 1,455 731
Vernon County 24.2 4,994 721
Clay County 24.3 58,939 703
Cass County 24.3 25,214 695
Mercer County 24.4 888 684
Laclede County 24.5 8,692 654
Harrison County 24.5 2,083 639
Moniteau County 24.6 3,952 614
Gentry County 24.8 1,639 573
Pettis County 24.8 10,524 554
Jasper County 25.1 30,065 505
Lawrence County 25.4 9,691 443
McDonald County 25.4 5,782 438
Wright County 25.5 4,634 422
Lincoln County 25.5 14,419 406
Christian County 25.5 21,879 404
Dunklin County 25.6 7,685 396
Daviess County 25.7 2,131 379
Pemiscot County 26.0 4,335 338
Schuyler County 26.3 1,197 302
Webster County 27.0 10,437 222
Scotland County 28.8 1,414 123
Notes:
Created by statecancerprofiles.cancer.gov on 12/07/2021 4:51 am.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Health Service Areas are a single county or cluster of contiguous counties which are relatively self-contained with respect to hospital care. For more detailed information, please see Health Service Area information page. Puerto Rico is being treated as a Health Service Area for this data presentation.
Data for United States does not include Puerto Rico.

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