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Interpretation of Demographics Data

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 Value

Iowa

2023 Rural-Urban Continuum Codes Φ : N/A
Value (Percent) : The value is 23.0 percent.
People (Age Under 18) : The number of people (age under 18) is 736,579.
Rank within US : This state is ranked 16 of 52

United States

2023 Rural-Urban Continuum Codes Φ : N/A
Value (Percent) : The value is 22.2 percent.
People (Age Under 18) : The number of people (age under 18) is 73,645,238.
Rank within US : N/A

Davis County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 29.9 percent.
People (Age Under 18) : The number of people (age under 18) is 2,730.
Rank within US : This county is ranked 79 of 3143

Lyon County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 28.6 percent.
People (Age Under 18) : The number of people (age under 18) is 3,451.
Rank within US : This county is ranked 117 of 3143

Sioux County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 27.4 percent.
People (Age Under 18) : The number of people (age under 18) is 9,874.
Rank within US : This county is ranked 173 of 3143

Dallas County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 26.8 percent.
People (Age Under 18) : The number of people (age under 18) is 27,939.
Rank within US : This county is ranked 209 of 3143

Buena Vista County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 26.7 percent.
People (Age Under 18) : The number of people (age under 18) is 5,521.
Rank within US : This county is ranked 215 of 3143

Wayne County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 26.3 percent.
People (Age Under 18) : The number of people (age under 18) is 1,714.
Rank within US : This county is ranked 251 of 3143

Wright County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 26.1 percent.
People (Age Under 18) : The number of people (age under 18) is 3,343.
Rank within US : This county is ranked 270 of 3143

Woodbury County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 25.9 percent.
People (Age Under 18) : The number of people (age under 18) is 27,420.
Rank within US : This county is ranked 299 of 3143

Buchanan County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 25.7 percent.
People (Age Under 18) : The number of people (age under 18) is 5,308.
Rank within US : This county is ranked 324 of 3143

Howard County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 25.6 percent.
People (Age Under 18) : The number of people (age under 18) is 2,419.
Rank within US : This county is ranked 338 of 3143

Clarke County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 25.5 percent.
People (Age Under 18) : The number of people (age under 18) is 2,474.
Rank within US : This county is ranked 355 of 3143

Crawford County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 25.3 percent.
People (Age Under 18) : The number of people (age under 18) is 4,121.
Rank within US : This county is ranked 398 of 3143

Marshall County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 25.3 percent.
People (Age Under 18) : The number of people (age under 18) is 10,127.
Rank within US : This county is ranked 398 of 3143

Madison County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 24.9 percent.
People (Age Under 18) : The number of people (age under 18) is 4,175.
Rank within US : This county is ranked 492 of 3143

Plymouth County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.9 percent.
People (Age Under 18) : The number of people (age under 18) is 6,411.
Rank within US : This county is ranked 492 of 3143

Polk County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 24.6 percent.
People (Age Under 18) : The number of people (age under 18) is 122,384.
Rank within US : This county is ranked 545 of 3143

Warren County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 24.6 percent.
People (Age Under 18) : The number of people (age under 18) is 13,172.
Rank within US : This county is ranked 545 of 3143

Washington County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 24.6 percent.
People (Age Under 18) : The number of people (age under 18) is 5,553.
Rank within US : This county is ranked 545 of 3143

Ida County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.5 percent.
People (Age Under 18) : The number of people (age under 18) is 1,698.
Rank within US : This county is ranked 572 of 3143

Franklin County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.4 percent.
People (Age Under 18) : The number of people (age under 18) is 2,439.
Rank within US : This county is ranked 594 of 3143

O'Brien County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.4 percent.
People (Age Under 18) : The number of people (age under 18) is 3,438.
Rank within US : This county is ranked 594 of 3143

Muscatine County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.2 percent.
People (Age Under 18) : The number of people (age under 18) is 10,344.
Rank within US : This county is ranked 647 of 3143

Allamakee County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.1 percent.
People (Age Under 18) : The number of people (age under 18) is 3,386.
Rank within US : This county is ranked 687 of 3143

Carroll County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.1 percent.
People (Age Under 18) : The number of people (age under 18) is 4,986.
Rank within US : This county is ranked 687 of 3143

Mitchell County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.0 percent.
People (Age Under 18) : The number of people (age under 18) is 2,534.
Rank within US : This county is ranked 718 of 3143

Tama County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.0 percent.
People (Age Under 18) : The number of people (age under 18) is 4,079.
Rank within US : This county is ranked 718 of 3143

Mahaska County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.9 percent.
People (Age Under 18) : The number of people (age under 18) is 5,262.
Rank within US : This county is ranked 750 of 3143

Humboldt County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.7 percent.
People (Age Under 18) : The number of people (age under 18) is 2,266.
Rank within US : This county is ranked 823 of 3143

Union County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.7 percent.
People (Age Under 18) : The number of people (age under 18) is 2,858.
Rank within US : This county is ranked 823 of 3143

Wapello County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.7 percent.
People (Age Under 18) : The number of people (age under 18) is 8,349.
Rank within US : This county is ranked 823 of 3143

Cass County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.6 percent.
People (Age Under 18) : The number of people (age under 18) is 3,090.
Rank within US : This county is ranked 866 of 3143

Grundy County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.6 percent.
People (Age Under 18) : The number of people (age under 18) is 2,917.
Rank within US : This county is ranked 866 of 3143

Iowa County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.5 percent.
People (Age Under 18) : The number of people (age under 18) is 3,888.
Rank within US : This county is ranked 900 of 3143

Osceola County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.5 percent.
People (Age Under 18) : The number of people (age under 18) is 1,436.
Rank within US : This county is ranked 900 of 3143

Taylor County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.5 percent.
People (Age Under 18) : The number of people (age under 18) is 1,386.
Rank within US : This county is ranked 900 of 3143

Delaware County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.4 percent.
People (Age Under 18) : The number of people (age under 18) is 4,115.
Rank within US : This county is ranked 947 of 3143

Hamilton County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.4 percent.
People (Age Under 18) : The number of people (age under 18) is 3,486.
Rank within US : This county is ranked 947 of 3143

Marion County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.4 percent.
People (Age Under 18) : The number of people (age under 18) is 7,845.
Rank within US : This county is ranked 947 of 3143

Palo Alto County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.4 percent.
People (Age Under 18) : The number of people (age under 18) is 2,087.
Rank within US : This county is ranked 947 of 3143

Scott County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.4 percent.
People (Age Under 18) : The number of people (age under 18) is 40,786.
Rank within US : This county is ranked 947 of 3143

Chickasaw County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.3 percent.
People (Age Under 18) : The number of people (age under 18) is 2,769.
Rank within US : This county is ranked 1001 of 3143

Pottawattamie County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.2 percent.
People (Age Under 18) : The number of people (age under 18) is 21,645.
Rank within US : This county is ranked 1042 of 3143

Ringgold County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.2 percent.
People (Age Under 18) : The number of people (age under 18) is 1,081.
Rank within US : This county is ranked 1042 of 3143

Van Buren County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.2 percent.
People (Age Under 18) : The number of people (age under 18) is 1,681.
Rank within US : This county is ranked 1042 of 3143

Benton County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.1 percent.
People (Age Under 18) : The number of people (age under 18) is 5,941.
Rank within US : This county is ranked 1087 of 3143

Clay County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.1 percent.
People (Age Under 18) : The number of people (age under 18) is 3,803.
Rank within US : This county is ranked 1087 of 3143

Harrison County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.1 percent.
People (Age Under 18) : The number of people (age under 18) is 3,377.
Rank within US : This county is ranked 1087 of 3143

Mills County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.1 percent.
People (Age Under 18) : The number of people (age under 18) is 3,362.
Rank within US : This county is ranked 1087 of 3143

Monroe County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.1 percent.
People (Age Under 18) : The number of people (age under 18) is 1,745.
Rank within US : This county is ranked 1087 of 3143

Adair County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.0 percent.
People (Age Under 18) : The number of people (age under 18) is 1,715.
Rank within US : This county is ranked 1127 of 3143

Lucas County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.0 percent.
People (Age Under 18) : The number of people (age under 18) is 1,998.
Rank within US : This county is ranked 1127 of 3143

Pocahontas County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.0 percent.
People (Age Under 18) : The number of people (age under 18) is 1,622.
Rank within US : This county is ranked 1127 of 3143

Linn County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 22.8 percent.
People (Age Under 18) : The number of people (age under 18) is 52,233.
Rank within US : This county is ranked 1209 of 3143

Shelby County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.8 percent.
People (Age Under 18) : The number of people (age under 18) is 2,686.
Rank within US : This county is ranked 1209 of 3143

Clinton County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.7 percent.
People (Age Under 18) : The number of people (age under 18) is 10,532.
Rank within US : This county is ranked 1250 of 3143

Dubuque County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 22.7 percent.
People (Age Under 18) : The number of people (age under 18) is 22,431.
Rank within US : This county is ranked 1250 of 3143

Keokuk County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.7 percent.
People (Age Under 18) : The number of people (age under 18) is 2,262.
Rank within US : This county is ranked 1250 of 3143

Bremer County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 22.6 percent.
People (Age Under 18) : The number of people (age under 18) is 5,677.
Rank within US : This county is ranked 1288 of 3143

Decatur County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.6 percent.
People (Age Under 18) : The number of people (age under 18) is 1,730.
Rank within US : This county is ranked 1288 of 3143

Floyd County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.6 percent.
People (Age Under 18) : The number of people (age under 18) is 3,508.
Rank within US : This county is ranked 1288 of 3143

Montgomery County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.6 percent.
People (Age Under 18) : The number of people (age under 18) is 2,320.
Rank within US : This county is ranked 1288 of 3143

Butler County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.5 percent.
People (Age Under 18) : The number of people (age under 18) is 3,215.
Rank within US : This county is ranked 1340 of 3143

Louisa County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.4 percent.
People (Age Under 18) : The number of people (age under 18) is 2,402.
Rank within US : This county is ranked 1385 of 3143

Monona County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.4 percent.
People (Age Under 18) : The number of people (age under 18) is 1,932.
Rank within US : This county is ranked 1385 of 3143

Kossuth County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.3 percent.
People (Age Under 18) : The number of people (age under 18) is 3,251.
Rank within US : This county is ranked 1429 of 3143

Sac County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.3 percent.
People (Age Under 18) : The number of people (age under 18) is 2,172.
Rank within US : This county is ranked 1429 of 3143

Audubon County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.2 percent.
People (Age Under 18) : The number of people (age under 18) is 1,249.
Rank within US : This county is ranked 1469 of 3143

Jackson County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 22.2 percent.
People (Age Under 18) : The number of people (age under 18) is 4,313.
Rank within US : This county is ranked 1469 of 3143

Jasper County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 22.1 percent.
People (Age Under 18) : The number of people (age under 18) is 8,382.
Rank within US : This county is ranked 1518 of 3143

Adams County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.9 percent.
People (Age Under 18) : The number of people (age under 18) is 796.
Rank within US : This county is ranked 1606 of 3143

Black Hawk County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 21.9 percent.
People (Age Under 18) : The number of people (age under 18) is 28,679.
Rank within US : This county is ranked 1606 of 3143

Des Moines County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.9 percent.
People (Age Under 18) : The number of people (age under 18) is 8,444.
Rank within US : This county is ranked 1606 of 3143

Fremont County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.9 percent.
People (Age Under 18) : The number of people (age under 18) is 1,441.
Rank within US : This county is ranked 1606 of 3143

Calhoun County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.8 percent.
People (Age Under 18) : The number of people (age under 18) is 2,152.
Rank within US : This county is ranked 1646 of 3143

Cherokee County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.8 percent.
People (Age Under 18) : The number of people (age under 18) is 2,522.
Rank within US : This county is ranked 1646 of 3143

Clayton County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.7 percent.
People (Age Under 18) : The number of people (age under 18) is 3,708.
Rank within US : This county is ranked 1683 of 3143

Winnebago County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.7 percent.
People (Age Under 18) : The number of people (age under 18) is 2,315.
Rank within US : This county is ranked 1683 of 3143

Cedar County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.5 percent.
People (Age Under 18) : The number of people (age under 18) is 3,953.
Rank within US : This county is ranked 1784 of 3143

Appanoose County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.4 percent.
People (Age Under 18) : The number of people (age under 18) is 2,621.
Rank within US : This county is ranked 1821 of 3143

Fayette County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.4 percent.
People (Age Under 18) : The number of people (age under 18) is 4,145.
Rank within US : This county is ranked 1821 of 3143

Guthrie County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 21.4 percent.
People (Age Under 18) : The number of people (age under 18) is 2,279.
Rank within US : This county is ranked 1821 of 3143

Webster County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.4 percent.
People (Age Under 18) : The number of people (age under 18) is 7,872.
Rank within US : This county is ranked 1821 of 3143

Hancock County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.3 percent.
People (Age Under 18) : The number of people (age under 18) is 2,281.
Rank within US : This county is ranked 1876 of 3143

Lee County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.3 percent.
People (Age Under 18) : The number of people (age under 18) is 7,075.
Rank within US : This county is ranked 1876 of 3143

Greene County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.1 percent.
People (Age Under 18) : The number of people (age under 18) is 1,844.
Rank within US : This county is ranked 1936 of 3143

Cerro Gordo County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.0 percent.
People (Age Under 18) : The number of people (age under 18) is 8,964.
Rank within US : This county is ranked 1977 of 3143

Henry County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.0 percent.
People (Age Under 18) : The number of people (age under 18) is 4,254.
Rank within US : This county is ranked 1977 of 3143

Boone County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 20.9 percent.
People (Age Under 18) : The number of people (age under 18) is 5,581.
Rank within US : This county is ranked 2008 of 3143

Jones County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 20.9 percent.
People (Age Under 18) : The number of people (age under 18) is 4,344.
Rank within US : This county is ranked 2008 of 3143

Worth County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 20.6 percent.
People (Age Under 18) : The number of people (age under 18) is 1,520.
Rank within US : This county is ranked 2123 of 3143

Emmet County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.5 percent.
People (Age Under 18) : The number of people (age under 18) is 1,817.
Rank within US : This county is ranked 2445 of 3143

Johnson County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 19.5 percent.
People (Age Under 18) : The number of people (age under 18) is 30,276.
Rank within US : This county is ranked 2445 of 3143

Poweshiek County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.5 percent.
People (Age Under 18) : The number of people (age under 18) is 3,619.
Rank within US : This county is ranked 2445 of 3143

Dickinson County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.2 percent.
People (Age Under 18) : The number of people (age under 18) is 3,433.
Rank within US : This county is ranked 2514 of 3143

Hardin County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.2 percent.
People (Age Under 18) : The number of people (age under 18) is 3,217.
Rank within US : This county is ranked 2514 of 3143

Page County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.2 percent.
People (Age Under 18) : The number of people (age under 18) is 2,908.
Rank within US : This county is ranked 2514 of 3143

Winneshiek County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.0 percent.
People (Age Under 18) : The number of people (age under 18) is 3,790.
Rank within US : This county is ranked 2557 of 3143

Jefferson County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 17.1 percent.
People (Age Under 18) : The number of people (age under 18) is 2,684.
Rank within US : This county is ranked 2892 of 3143

Story County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 16.4 percent.
People (Age Under 18) : The number of people (age under 18) is 16,200.
Rank within US : This county is ranked 2956 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 07/12/2025 7:29 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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