Demographics Table
Demographic Data Report for Iowa by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Rank
County![]() |
2023 Rural-Urban Continuum Codes Φ![]() |
Value (Percent)![]() |
People (Age 40 And Over)![]() |
Rank within US (of 3143 counties) ![]() |
---|---|---|---|---|
United States | N/A | 48.3 | 160,683,909 | N/A |
Iowa | N/A | 48.2 | 1,539,086 | 33 of 52 |
Dickinson County | Rural | 59.6 | 10,637 | 288 |
Guthrie County | Urban | 57.7 | 6,138 | 465 |
Cherokee County | Rural | 57.6 | 6,669 | 478 |
Fremont County | Rural | 57.6 | 3,782 | 478 |
Audubon County | Rural | 57.1 | 3,210 | 535 |
Clayton County | Rural | 57.0 | 9,723 | 548 |
Adams County | Rural | 56.9 | 2,072 | 561 |
Van Buren County | Rural | 56.6 | 4,093 | 580 |
Hardin County | Rural | 56.2 | 9,406 | 630 |
Hancock County | Rural | 55.9 | 5,991 | 666 |
Worth County | Rural | 55.8 | 4,117 | 685 |
Page County | Rural | 55.7 | 8,447 | 696 |
Greene County | Rural | 55.4 | 4,835 | 755 |
Sac County | Rural | 55.3 | 5,397 | 770 |
Jones County | Urban | 55.1 | 11,456 | 797 |
Cass County | Rural | 54.8 | 7,192 | 848 |
Jackson County | Rural | 54.8 | 10,644 | 848 |
Lee County | Rural | 54.8 | 18,170 | 848 |
Monona County | Rural | 54.8 | 4,723 | 848 |
Shelby County | Rural | 54.8 | 6,443 | 848 |
Butler County | Rural | 54.7 | 7,821 | 870 |
Cerro Gordo County | Rural | 54.7 | 23,388 | 870 |
Montgomery County | Rural | 54.6 | 5,594 | 889 |
Appanoose County | Rural | 54.5 | 6,677 | 912 |
Floyd County | Rural | 54.5 | 8,450 | 912 |
Kossuth County | Rural | 54.5 | 7,968 | 912 |
Chickasaw County | Rural | 54.4 | 6,451 | 936 |
Jefferson County | Rural | 54.4 | 8,528 | 936 |
Lucas County | Rural | 54.4 | 4,721 | 936 |
Delaware County | Rural | 54.3 | 9,524 | 959 |
Pocahontas County | Rural | 54.2 | 3,818 | 977 |
Ringgold County | Rural | 54.2 | 2,530 | 977 |
Osceola County | Rural | 54.1 | 3,306 | 1,011 |
Taylor County | Rural | 54.1 | 3,194 | 1,011 |
Cedar County | Rural | 53.9 | 9,935 | 1,056 |
Emmet County | Rural | 53.8 | 5,010 | 1,078 |
Allamakee County | Rural | 53.6 | 7,524 | 1,120 |
Fayette County | Rural | 53.5 | 10,367 | 1,137 |
Mills County | Urban | 53.4 | 7,781 | 1,162 |
Benton County | Urban | 53.3 | 13,701 | 1,189 |
Keokuk County | Rural | 53.3 | 5,312 | 1,189 |
Clinton County | Rural | 53.0 | 24,564 | 1,255 |
Hamilton County | Rural | 53.0 | 7,891 | 1,255 |
Iowa County | Rural | 53.0 | 8,762 | 1,255 |
Louisa County | Rural | 53.0 | 5,678 | 1,255 |
Winneshiek County | Rural | 53.0 | 10,577 | 1,255 |
Adair County | Rural | 52.8 | 3,946 | 1,309 |
Calhoun County | Rural | 52.8 | 5,207 | 1,309 |
Des Moines County | Rural | 52.8 | 20,385 | 1,309 |
Carroll County | Rural | 52.7 | 10,898 | 1,343 |
Franklin County | Rural | 52.7 | 5,259 | 1,343 |
Boone County | Urban | 52.6 | 14,021 | 1,368 |
Palo Alto County | Rural | 52.6 | 4,686 | 1,368 |
Mitchell County | Rural | 52.5 | 5,533 | 1,392 |
Humboldt County | Rural | 52.3 | 5,004 | 1,441 |
Ida County | Rural | 52.3 | 3,630 | 1,441 |
Clay County | Rural | 52.2 | 8,583 | 1,468 |
Wayne County | Rural | 52.2 | 3,405 | 1,468 |
Harrison County | Urban | 52.1 | 7,633 | 1,497 |
Grundy County | Urban | 51.9 | 6,407 | 1,542 |
Jasper County | Urban | 51.7 | 19,565 | 1,591 |
Monroe County | Rural | 51.7 | 3,900 | 1,591 |
Winnebago County | Rural | 51.7 | 5,500 | 1,591 |
Tama County | Rural | 51.6 | 8,755 | 1,629 |
Madison County | Urban | 51.4 | 8,612 | 1,669 |
Poweshiek County | Rural | 51.1 | 9,495 | 1,751 |
Plymouth County | Rural | 50.9 | 13,083 | 1,802 |
Union County | Rural | 50.8 | 6,120 | 1,823 |
Henry County | Rural | 50.6 | 10,232 | 1,867 |
Washington County | Urban | 50.4 | 11,356 | 1,909 |
Pottawattamie County | Urban | 50.2 | 46,895 | 1,964 |
Wapello County | Rural | 49.9 | 17,592 | 2,023 |
Buchanan County | Rural | 49.8 | 10,285 | 2,045 |
Marion County | Rural | 49.7 | 16,683 | 2,071 |
Webster County | Rural | 49.7 | 18,328 | 2,071 |
Wright County | Rural | 49.7 | 6,370 | 2,071 |
O'Brien County | Rural | 49.6 | 7,000 | 2,089 |
Mahaska County | Rural | 49.0 | 10,810 | 2,224 |
Howard County | Rural | 48.9 | 4,627 | 2,240 |
Crawford County | Rural | 48.7 | 7,937 | 2,283 |
Muscatine County | Rural | 48.7 | 20,833 | 2,283 |
Scott County | Urban | 48.7 | 84,841 | 2,283 |
Marshall County | Rural | 48.4 | 19,360 | 2,334 |
Clarke County | Rural | 48.2 | 4,670 | 2,375 |
Dubuque County | Urban | 48.2 | 47,679 | 2,375 |
Linn County | Urban | 48.2 | 110,685 | 2,375 |
Bremer County | Urban | 48.1 | 12,087 | 2,398 |
Warren County | Urban | 48.1 | 25,744 | 2,398 |
Lyon County | Rural | 47.1 | 5,696 | 2,522 |
Davis County | Rural | 46.6 | 4,249 | 2,582 |
Decatur County | Rural | 46.6 | 3,571 | 2,582 |
Woodbury County | Urban | 45.6 | 48,204 | 2,697 |
Black Hawk County | Urban | 44.6 | 58,330 | 2,788 |
Polk County | Urban | 44.2 | 219,996 | 2,811 |
Buena Vista County | Rural | 44.0 | 9,098 | 2,823 |
Sioux County | Rural | 43.5 | 15,659 | 2,858 |
Dallas County | Urban | 42.8 | 44,564 | 2,903 |
Johnson County | Urban | 38.4 | 59,413 | 3,067 |
Story County | Urban | 34.9 | 34,448 | 3,116 |
Notes:
Created by statecancerprofiles.cancer.gov on 04/22/2025 7:19 pm.
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 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 04/22/2025 7:19 pm.
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 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.