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Interpretation of Demographics Data

Demographic Data Report for Iowa by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

United States


Iowa


Polk County


Linn County


Johnson County


Story County


Scott County


Black Hawk County


Dallas County


Woodbury County


Dubuque County


Pottawattamie County


Warren County


Clinton County


Muscatine County


Webster County


Marshall County


Sioux County


Cerro Gordo County


Jasper County


Des Moines County


Wapello County


Marion County


Lee County


Bremer County


Boone County


Plymouth County


Buena Vista County


Mahaska County


Benton County


Washington County


Henry County


Winneshiek County


Poweshiek County


Jones County


Buchanan County


Carroll County


Fayette County


Cedar County


Jefferson County


Jackson County


Tama County


Crawford County


Hardin County


Madison County


Delaware County


Clay County


Iowa County


Page County


O'Brien County


Dickinson County


Harrison County


Clayton County


Mills County


Floyd County


Hamilton County


Kossuth County


Butler County


Union County


Allamakee County


Wright County


Appanoose County


Grundy County


Lyon County


Cass County


Winnebago County


Chickasaw County


Louisa County


Shelby County


Clarke County


Cherokee County


Emmet County


Mitchell County


Calhoun County


Hancock County


Decatur County


Montgomery County


Keokuk County


Howard County


Guthrie County


Humboldt County


Franklin County


Sac County


Davis County


Palo Alto County


Greene County


Lucas County


Monroe County


Monona County


Adair County


Worth County


Ida County


Pocahontas County


Van Buren County


Wayne County


Osceola County


Fremont County


Taylor County


Ringgold County


Audubon County


Adams County





Notes:
Created by statecancerprofiles.cancer.gov on 03/30/2026 3:58 pm.

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 18-39, see the dictionary.

Data for United States does not include Puerto Rico.