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Demographic Data Report for Iowa by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Count

County
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2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
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People (Age Under 18)
 sort by sample size descending
Rank within US
(of 3143 counties)
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Iowa N/A 23.0 736,579 16 of 52
United States N/A 22.2 73,645,238 N/A
Adams County Rural 21.9 796 1,606
Ringgold County Rural 23.2 1,081 1,042
Audubon County Rural 22.2 1,249 1,469
Taylor County Rural 23.5 1,386 900
Osceola County Rural 23.5 1,436 900
Fremont County Rural 21.9 1,441 1,606
Worth County Rural 20.6 1,520 2,123
Pocahontas County Rural 23.0 1,622 1,127
Van Buren County Rural 23.2 1,681 1,042
Ida County Rural 24.5 1,698 572
Wayne County Rural 26.3 1,714 251
Adair County Rural 23.0 1,715 1,127
Decatur County Rural 22.6 1,730 1,288
Monroe County Rural 23.1 1,745 1,087
Emmet County Rural 19.5 1,817 2,445
Greene County Rural 21.1 1,844 1,936
Monona County Rural 22.4 1,932 1,385
Lucas County Rural 23.0 1,998 1,127
Palo Alto County Rural 23.4 2,087 947
Calhoun County Rural 21.8 2,152 1,646
Sac County Rural 22.3 2,172 1,429
Keokuk County Rural 22.7 2,262 1,250
Humboldt County Rural 23.7 2,266 823
Guthrie County Urban 21.4 2,279 1,821
Hancock County Rural 21.3 2,281 1,876
Winnebago County Rural 21.7 2,315 1,683
Montgomery County Rural 22.6 2,320 1,288
Louisa County Rural 22.4 2,402 1,385
Howard County Rural 25.6 2,419 338
Franklin County Rural 24.4 2,439 594
Clarke County Rural 25.5 2,474 355
Cherokee County Rural 21.8 2,522 1,646
Mitchell County Rural 24.0 2,534 718
Appanoose County Rural 21.4 2,621 1,821
Jefferson County Rural 17.1 2,684 2,892
Shelby County Rural 22.8 2,686 1,209
Davis County Rural 29.9 2,730 79
Chickasaw County Rural 23.3 2,769 1,001
Union County Rural 23.7 2,858 823
Page County Rural 19.2 2,908 2,514
Grundy County Urban 23.6 2,917 866
Cass County Rural 23.6 3,090 866
Butler County Rural 22.5 3,215 1,340
Hardin County Rural 19.2 3,217 2,514
Kossuth County Rural 22.3 3,251 1,429
Wright County Rural 26.1 3,343 270
Mills County Urban 23.1 3,362 1,087
Harrison County Urban 23.1 3,377 1,087
Allamakee County Rural 24.1 3,386 687
Dickinson County Rural 19.2 3,433 2,514
O'Brien County Rural 24.4 3,438 594
Lyon County Rural 28.6 3,451 117
Hamilton County Rural 23.4 3,486 947
Floyd County Rural 22.6 3,508 1,288
Poweshiek County Rural 19.5 3,619 2,445
Clayton County Rural 21.7 3,708 1,683
Winneshiek County Rural 19.0 3,790 2,557
Clay County Rural 23.1 3,803 1,087
Iowa County Rural 23.5 3,888 900
Cedar County Rural 21.5 3,953 1,784
Tama County Rural 24.0 4,079 718
Delaware County Rural 23.4 4,115 947
Crawford County Rural 25.3 4,121 398
Fayette County Rural 21.4 4,145 1,821
Madison County Urban 24.9 4,175 492
Henry County Rural 21.0 4,254 1,977
Jackson County Rural 22.2 4,313 1,469
Jones County Urban 20.9 4,344 2,008
Carroll County Rural 24.1 4,986 687
Mahaska County Rural 23.9 5,262 750
Buchanan County Rural 25.7 5,308 324
Buena Vista County Rural 26.7 5,521 215
Washington County Urban 24.6 5,553 545
Boone County Urban 20.9 5,581 2,008
Bremer County Urban 22.6 5,677 1,288
Benton County Urban 23.1 5,941 1,087
Plymouth County Rural 24.9 6,411 492
Lee County Rural 21.3 7,075 1,876
Marion County Rural 23.4 7,845 947
Webster County Rural 21.4 7,872 1,821
Wapello County Rural 23.7 8,349 823
Jasper County Urban 22.1 8,382 1,518
Des Moines County Rural 21.9 8,444 1,606
Cerro Gordo County Rural 21.0 8,964 1,977
Sioux County Rural 27.4 9,874 173
Marshall County Rural 25.3 10,127 398
Muscatine County Rural 24.2 10,344 647
Clinton County Rural 22.7 10,532 1,250
Warren County Urban 24.6 13,172 545
Story County Urban 16.4 16,200 2,956
Pottawattamie County Urban 23.2 21,645 1,042
Dubuque County Urban 22.7 22,431 1,250
Woodbury County Urban 25.9 27,420 299
Dallas County Urban 26.8 27,939 209
Black Hawk County Urban 21.9 28,679 1,606
Johnson County Urban 19.5 30,276 2,445
Scott County Urban 23.4 40,786 947
Linn County Urban 22.8 52,233 1,209
Polk County Urban 24.6 122,384 545
Notes:
Created by statecancerprofiles.cancer.gov on 06/13/2025 10:48 am.

Φ Rural-Urban Continuum Codes provided by the USDA.

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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