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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


Story County


Johnson County


Black Hawk County


Polk County


Decatur County


Dallas County


Poweshiek County


Buena Vista County


Bremer County


Webster County


Dubuque County


Sioux County


Linn County


Jefferson County


Woodbury County


Winneshiek County


Henry County


Scott County


Mahaska County


Warren County


Marion County


Pottawattamie County


Union County


Wapello County


Clarke County


Emmet County


Muscatine County


Marshall County


Winnebago County


O'Brien County


Jasper County


Boone County


Monroe County


Crawford County


Jones County


Appanoose County


Des Moines County


Howard County


Page County


Calhoun County


Tama County


Adair County


Lyon County


Cedar County


Louisa County


Washington County


Clinton County


Hardin County


Harrison County


Mills County


Fayette County


Grundy County


Wright County


Cerro Gordo County


Clay County


Lee County


Buchanan County


Keokuk County


Madison County


Ida County


Carroll County


Kossuth County


Palo Alto County


Plymouth County


Greene County


Humboldt County


Hamilton County


Osceola County


Benton County


Montgomery County


Iowa County


Lucas County


Mitchell County


Ringgold County


Davis County


Butler County


Floyd County


Pocahontas County


Delaware County


Worth County


Chickasaw County


Hancock County


Jackson County


Taylor County


Monona County


Allamakee County


Franklin County


Shelby County


Cass County


Wayne County


Sac County


Cherokee County


Guthrie County


Adams County


Clayton County


Fremont County


Dickinson County


Van Buren County


Audubon County





Notes:
Created by statecancerprofiles.cancer.gov on 03/30/2026 10:57 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 18-39, see the dictionary.

Data for United States does not include Puerto Rico.