Interpretation of Demographics Data
Demographic Data Report for Iowa by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2017-2021 American Community Survey 5-Year Data
Sorted by Value
Iowa
- Value (Percent) : The value is 23.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 742,175.
- Rank within US : This state is ranked 15 of 52
United States
- Value (Percent) : The value is 22.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 74,234,075.
- Rank within US : N/A
Davis County
- Value (Percent) : The value is 29.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,691.
- Rank within US : This county is ranked 101 of 3143
Lyon County
- Value (Percent) : The value is 28.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,392.
- Rank within US : This county is ranked 142 of 3143
Dallas County
- Value (Percent) : The value is 27.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 26,545.
- Rank within US : This county is ranked 184 of 3143
Sioux County
- Value (Percent) : The value is 27.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 9,759.
- Rank within US : This county is ranked 197 of 3143
Buchanan County
- Value (Percent) : The value is 26.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,430.
- Rank within US : This county is ranked 290 of 3143
Buena Vista County
- Value (Percent) : The value is 26.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,430.
- Rank within US : This county is ranked 309 of 3143
Woodbury County
- Value (Percent) : The value is 26.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 27,491.
- Rank within US : This county is ranked 316 of 3143
Clarke County
- Value (Percent) : The value is 26.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,546.
- Rank within US : This county is ranked 317 of 3143
Wayne County
- Value (Percent) : The value is 25.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,684.
- Rank within US : This county is ranked 351 of 3143
Howard County
- Value (Percent) : The value is 25.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,418.
- Rank within US : This county is ranked 411 of 3143
Marshall County
- Value (Percent) : The value is 25.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 10,257.
- Rank within US : This county is ranked 414 of 3143
Madison County
- Value (Percent) : The value is 25.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,179.
- Rank within US : This county is ranked 431 of 3143
Crawford County
- Value (Percent) : The value is 25.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,210.
- Rank within US : This county is ranked 438 of 3143
Plymouth County
- Value (Percent) : The value is 25.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 6,441.
- Rank within US : This county is ranked 480 of 3143
Washington County
- Value (Percent) : The value is 24.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,616.
- Rank within US : This county is ranked 535 of 3143
Polk County
- Value (Percent) : The value is 24.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 121,827.
- Rank within US : This county is ranked 538 of 3143
Muscatine County
- Value (Percent) : The value is 24.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 10,737.
- Rank within US : This county is ranked 550 of 3143
Ida County
- Value (Percent) : The value is 24.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,733.
- Rank within US : This county is ranked 563 of 3143
Wright County
- Value (Percent) : The value is 24.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,221.
- Rank within US : This county is ranked 567 of 3143
Warren County
- Value (Percent) : The value is 24.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 12,858.
- Rank within US : This county is ranked 570 of 3143
Monroe County
- Value (Percent) : The value is 24.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,853.
- Rank within US : This county is ranked 678 of 3143
Montgomery County
- Value (Percent) : The value is 24.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,515.
- Rank within US : This county is ranked 693 of 3143
Tama County
- Value (Percent) : The value is 24.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,154.
- Rank within US : This county is ranked 706 of 3143
Ringgold County
- Value (Percent) : The value is 24.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,149.
- Rank within US : This county is ranked 724 of 3143
Mitchell County
- Value (Percent) : The value is 24.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,537.
- Rank within US : This county is ranked 779 of 3143
O'Brien County
- Value (Percent) : The value is 24.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,405.
- Rank within US : This county is ranked 786 of 3143
Delaware County
- Value (Percent) : The value is 24.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,210.
- Rank within US : This county is ranked 796 of 3143
Mahaska County
- Value (Percent) : The value is 24.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,316.
- Rank within US : This county is ranked 802 of 3143
Carroll County
- Value (Percent) : The value is 24.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,981.
- Rank within US : This county is ranked 811 of 3143
Humboldt County
- Value (Percent) : The value is 24.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,308.
- Rank within US : This county is ranked 817 of 3143
Chickasaw County
- Value (Percent) : The value is 23.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,872.
- Rank within US : This county is ranked 868 of 3143
Scott County
- Value (Percent) : The value is 23.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 41,552.
- Rank within US : This county is ranked 882 of 3143
Allamakee County
- Value (Percent) : The value is 23.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,351.
- Rank within US : This county is ranked 903 of 3143
Pottawattamie County
- Value (Percent) : The value is 23.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 22,184.
- Rank within US : This county is ranked 949 of 3143
Osceola County
- Value (Percent) : The value is 23.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,462.
- Rank within US : This county is ranked 951 of 3143
Palo Alto County
- Value (Percent) : The value is 23.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,131.
- Rank within US : This county is ranked 958 of 3143
Mills County
- Value (Percent) : The value is 23.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,457.
- Rank within US : This county is ranked 995 of 3143
Grundy County
- Value (Percent) : The value is 23.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,903.
- Rank within US : This county is ranked 1013 of 3143
Harrison County
- Value (Percent) : The value is 23.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,423.
- Rank within US : This county is ranked 1040 of 3143
Franklin County
- Value (Percent) : The value is 23.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,359.
- Rank within US : This county is ranked 1045 of 3143
Marion County
- Value (Percent) : The value is 23.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 7,829.
- Rank within US : This county is ranked 1048 of 3143
Benton County
- Value (Percent) : The value is 23.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 6,016.
- Rank within US : This county is ranked 1051 of 3143
Clay County
- Value (Percent) : The value is 23.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,847.
- Rank within US : This county is ranked 1054 of 3143
Taylor County
- Value (Percent) : The value is 23.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,388.
- Rank within US : This county is ranked 1077 of 3143
Linn County
- Value (Percent) : The value is 23.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 53,295.
- Rank within US : This county is ranked 1113 of 3143
Wapello County
- Value (Percent) : The value is 23.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 8,221.
- Rank within US : This county is ranked 1144 of 3143
Van Buren County
- Value (Percent) : The value is 23.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,671.
- Rank within US : This county is ranked 1158 of 3143
Iowa County
- Value (Percent) : The value is 23.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,851.
- Rank within US : This county is ranked 1163 of 3143
Keokuk County
- Value (Percent) : The value is 23.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,322.
- Rank within US : This county is ranked 1203 of 3143
Butler County
- Value (Percent) : The value is 23.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,323.
- Rank within US : This county is ranked 1231 of 3143
Hamilton County
- Value (Percent) : The value is 23.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,464.
- Rank within US : This county is ranked 1257 of 3143
Bremer County
- Value (Percent) : The value is 22.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,701.
- Rank within US : This county is ranked 1277 of 3143
Dubuque County
- Value (Percent) : The value is 22.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 22,618.
- Rank within US : This county is ranked 1283 of 3143
Floyd County
- Value (Percent) : The value is 22.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,591.
- Rank within US : This county is ranked 1286 of 3143
Appanoose County
- Value (Percent) : The value is 22.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,816.
- Rank within US : This county is ranked 1305 of 3143
Clinton County
- Value (Percent) : The value is 22.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 10,645.
- Rank within US : This county is ranked 1318 of 3143
Des Moines County
- Value (Percent) : The value is 22.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 8,908.
- Rank within US : This county is ranked 1337 of 3143
Fremont County
- Value (Percent) : The value is 22.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,528.
- Rank within US : This county is ranked 1338 of 3143
Cass County
- Value (Percent) : The value is 22.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,998.
- Rank within US : This county is ranked 1344 of 3143
Lucas County
- Value (Percent) : The value is 22.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,964.
- Rank within US : This county is ranked 1386 of 3143
Cherokee County
- Value (Percent) : The value is 22.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,629.
- Rank within US : This county is ranked 1415 of 3143
Union County
- Value (Percent) : The value is 22.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,761.
- Rank within US : This county is ranked 1418 of 3143
Louisa County
- Value (Percent) : The value is 22.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,466.
- Rank within US : This county is ranked 1419 of 3143
Pocahontas County
- Value (Percent) : The value is 22.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,604.
- Rank within US : This county is ranked 1428 of 3143
Greene County
- Value (Percent) : The value is 22.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,997.
- Rank within US : This county is ranked 1432 of 3143
Calhoun County
- Value (Percent) : The value is 22.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,236.
- Rank within US : This county is ranked 1481 of 3143
Jasper County
- Value (Percent) : The value is 22.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 8,442.
- Rank within US : This county is ranked 1501 of 3143
Adair County
- Value (Percent) : The value is 22.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,663.
- Rank within US : This county is ranked 1522 of 3143
Monona County
- Value (Percent) : The value is 22.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,950.
- Rank within US : This county is ranked 1536 of 3143
Sac County
- Value (Percent) : The value is 22.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,193.
- Rank within US : This county is ranked 1544 of 3143
Audubon County
- Value (Percent) : The value is 22.3 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,259.
- Rank within US : This county is ranked 1571 of 3143
Kossuth County
- Value (Percent) : The value is 22.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,297.
- Rank within US : This county is ranked 1577 of 3143
Guthrie County
- Value (Percent) : The value is 22.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,356.
- Rank within US : This county is ranked 1586 of 3143
Jackson County
- Value (Percent) : The value is 22.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,324.
- Rank within US : This county is ranked 1608 of 3143
Winnebago County
- Value (Percent) : The value is 22.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,382.
- Rank within US : This county is ranked 1610 of 3143
Cedar County
- Value (Percent) : The value is 22.1 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,092.
- Rank within US : This county is ranked 1625 of 3143
Shelby County
- Value (Percent) : The value is 22.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,586.
- Rank within US : This county is ranked 1672 of 3143
Black Hawk County
- Value (Percent) : The value is 22.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 28,843.
- Rank within US : This county is ranked 1705 of 3143
Hancock County
- Value (Percent) : The value is 21.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 2,367.
- Rank within US : This county is ranked 1757 of 3143
Decatur County
- Value (Percent) : The value is 21.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,684.
- Rank within US : This county is ranked 1771 of 3143
Jones County
- Value (Percent) : The value is 21.8 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,498.
- Rank within US : This county is ranked 1801 of 3143
Clayton County
- Value (Percent) : The value is 21.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,731.
- Rank within US : This county is ranked 1807 of 3143
Lee County
- Value (Percent) : The value is 21.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 7,301.
- Rank within US : This county is ranked 1850 of 3143
Henry County
- Value (Percent) : The value is 21.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,433.
- Rank within US : This county is ranked 1857 of 3143
Boone County
- Value (Percent) : The value is 21.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 5,780.
- Rank within US : This county is ranked 1859 of 3143
Adams County
- Value (Percent) : The value is 21.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 794.
- Rank within US : This county is ranked 1921 of 3143
Webster County
- Value (Percent) : The value is 21.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 7,967.
- Rank within US : This county is ranked 1928 of 3143
Fayette County
- Value (Percent) : The value is 21.4 percent.
- People (Age Under 18) : The number of people (age under 18) is 4,183.
- Rank within US : This county is ranked 1961 of 3143
Cerro Gordo County
- Value (Percent) : The value is 21.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 9,086.
- Rank within US : This county is ranked 2072 of 3143
Worth County
- Value (Percent) : The value is 20.7 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,542.
- Rank within US : This county is ranked 2176 of 3143
Emmet County
- Value (Percent) : The value is 20.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 1,935.
- Rank within US : This county is ranked 2239 of 3143
Jefferson County
- Value (Percent) : The value is 20.2 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,206.
- Rank within US : This county is ranked 2331 of 3143
Poweshiek County
- Value (Percent) : The value is 20.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,733.
- Rank within US : This county is ranked 2390 of 3143
Johnson County
- Value (Percent) : The value is 20.0 percent.
- People (Age Under 18) : The number of people (age under 18) is 30,374.
- Rank within US : This county is ranked 2405 of 3143
Page County
- Value (Percent) : The value is 19.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,041.
- Rank within US : This county is ranked 2427 of 3143
Hardin County
- Value (Percent) : The value is 19.9 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,378.
- Rank within US : This county is ranked 2445 of 3143
Dickinson County
- Value (Percent) : The value is 19.5 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,423.
- Rank within US : This county is ranked 2531 of 3143
Winneshiek County
- Value (Percent) : The value is 18.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 3,740.
- Rank within US : This county is ranked 2734 of 3143
Story County
- Value (Percent) : The value is 16.6 percent.
- People (Age Under 18) : The number of people (age under 18) is 16,316.
- Rank within US : This county is ranked 2982 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 10/01/2023 12:47 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.