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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
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

United States


Iowa


Polk County


Linn County


Scott County


Johnson County


Black Hawk County


Dallas County


Woodbury County


Dubuque County


Pottawattamie County


Story County


Warren County


Clinton County


Marshall County


Muscatine County


Sioux County


Cerro Gordo County


Des Moines County


Wapello County


Jasper County


Webster County


Marion County


Lee County


Plymouth County


Benton County


Bremer County


Boone County


Washington County


Buena Vista County


Buchanan County


Mahaska County


Carroll County


Jackson County


Madison County


Jones County


Henry County


Crawford County


Fayette County


Delaware County


Tama County


Cedar County


Iowa County


Clay County


Winneshiek County


Clayton County


Poweshiek County


Hamilton County


Floyd County


Allamakee County


O'Brien County


Dickinson County


Lyon County


Harrison County


Wright County


Mills County


Kossuth County


Butler County


Hardin County


Cass County


Page County


Grundy County


Chickasaw County


Davis County


Shelby County


Union County


Jefferson County


Appanoose County


Cherokee County


Mitchell County


Clarke County


Howard County


Franklin County


Louisa County


Montgomery County


Humboldt County


Guthrie County


Hancock County


Winnebago County


Keokuk County


Calhoun County


Sac County


Lucas County


Palo Alto County


Monona County


Greene County


Emmet County


Monroe County


Decatur County


Van Buren County


Adair County


Wayne County


Ida County


Pocahontas County


Worth County


Fremont County


Osceola County


Taylor County


Audubon County


Ringgold County


Adams County





Notes:
Created by statecancerprofiles.cancer.gov on 03/30/2026 11:23 am.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

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.