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Interpretation of Demographics Data

Demographic Data Report for Iowa by County
Population: Age 40-64
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


Pottawattamie County


Dubuque County


Story County


Warren County


Clinton County


Cerro Gordo County


Muscatine County


Jasper County


Des Moines County


Marshall County


Webster County


Wapello County


Lee County


Marion County


Sioux County


Boone County


Benton County


Plymouth County


Bremer County


Washington County


Jones County


Buchanan County


Mahaska County


Jackson County


Carroll County


Henry County


Cedar County


Fayette County


Winneshiek County


Dickinson County


Buena Vista County


Delaware County


Madison County


Clayton County


Poweshiek County


Iowa County


Hardin County


Tama County


Crawford County


Clay County


Floyd County


Page County


Mills County


Harrison County


Hamilton County


Butler County


Jefferson County


Allamakee County


Kossuth County


Cass County


O'Brien County


Grundy County


Shelby County


Chickasaw County


Cherokee County


Appanoose County


Union County


Louisa County


Guthrie County


Wright County


Hancock County


Lyon County


Mitchell County


Winnebago County


Franklin County


Montgomery County


Sac County


Keokuk County


Humboldt County


Calhoun County


Emmet County


Palo Alto County


Lucas County


Howard County


Clarke County


Davis County


Greene County


Monona County


Worth County


Van Buren County


Monroe County


Adair County


Fremont County


Pocahontas County


Ida County


Decatur County


Audubon County


Wayne County


Osceola County


Taylor County


Ringgold County


Adams County





Notes:
Created by statecancerprofiles.cancer.gov on 03/30/2026 11:16 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 40-64, see the dictionary.

Data for United States does not include Puerto Rico.