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Demographics Table

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Demographic Data Report for Iowa by County
Education: At least high school
Ages 25+, All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

County
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2023 Rural-Urban Continuum Codes Φ
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Value (Percent)
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People (Education: At Least High School)
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Rank within US
(of 3143 counties)
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United States N/A 89.6 206,814,893 N/A
Iowa N/A 93.3 2,008,851 11 of 52
Polk County Urban 92.5 311,012 915
Linn County Urban 95.2 149,918 211
Scott County Urban 94.1 112,429 464
Johnson County Urban 96.3 90,327 82
Black Hawk County Urban 92.9 77,387 793
Dallas County Urban 95.4 67,953 177
Dubuque County Urban 93.9 62,937 514
Woodbury County Urban 87.6 59,676 2,100
Pottawattamie County Urban 90.7 58,078 1,440
Story County Urban 97.4 51,753 22
Warren County Urban 96.7 35,069 46
Clinton County Rural 93.3 30,108 681
Cerro Gordo County Rural 94.8 29,077 297
Muscatine County Rural 89.7 25,904 1,685
Des Moines County Rural 93.7 25,348 574
Jasper County Urban 94.0 25,134 490
Webster County Rural 93.0 23,050 766
Marshall County Rural 86.9 23,022 2,229
Lee County Rural 92.5 21,845 915
Marion County Rural 94.8 21,264 297
Wapello County Rural 88.6 21,264 1,913
Sioux County Rural 90.9 19,527 1,369
Boone County Urban 95.1 18,176 235
Benton County Urban 95.2 17,157 211
Plymouth County Rural 94.8 16,590 297
Bremer County Urban 96.2 15,995 90
Jones County Urban 95.2 14,422 211
Washington County Urban 93.5 14,387 630
Mahaska County Rural 93.5 13,684 630
Carroll County Rural 95.2 13,365 211
Buchanan County Rural 94.1 13,119 464
Dickinson County Rural 96.9 13,102 39
Jackson County Rural 94.2 13,008 432
Winneshiek County Rural 96.2 12,977 90
Henry County Rural 91.7 12,710 1,147
Cedar County Rural 95.7 12,657 140
Fayette County Rural 93.1 12,554 734
Poweshiek County Rural 94.9 11,591 279
Delaware County Rural 93.7 11,466 574
Hardin County Rural 93.0 11,379 766
Clayton County Rural 92.6 11,277 877
Jefferson County Rural 95.1 11,177 235
Iowa County Rural 95.5 11,084 169
Madison County Urban 96.6 11,077 50
Clay County Rural 93.3 10,688 681
Buena Vista County Rural 81.3 10,616 2,889
Tama County Rural 91.5 10,576 1,198
Page County Rural 93.4 10,544 658
Floyd County Rural 95.0 10,087 261
Mills County Urban 96.6 9,892 50
Kossuth County Rural 95.1 9,870 235
Hamilton County Rural 94.4 9,755 397
Harrison County Urban 93.8 9,579 547
Butler County Rural 93.9 9,507 514
Allamakee County Rural 92.6 8,965 877
Crawford County Rural 83.6 8,872 2,691
O'Brien County Rural 90.5 8,728 1,501
Cass County Rural 94.5 8,718 366
Grundy County Urban 96.9 8,371 39
Wright County Rural 91.7 7,853 1,147
Shelby County Rural 95.3 7,805 199
Cherokee County Rural 93.2 7,753 704
Appanoose County Rural 89.8 7,724 1,661
Chickasaw County Rural 93.7 7,658 574
Union County Rural 91.5 7,494 1,198
Lyon County Rural 95.3 7,420 199
Guthrie County Urban 95.9 7,415 113
Winnebago County Rural 94.7 6,948 322
Hancock County Rural 91.4 6,943 1,233
Mitchell County Rural 93.1 6,796 734
Montgomery County Rural 91.7 6,618 1,147
Keokuk County Rural 94.4 6,565 397
Calhoun County Rural 92.9 6,516 793
Louisa County Rural 85.7 6,461 2,427
Sac County Rural 92.8 6,425 822
Humboldt County Rural 93.2 6,200 704
Franklin County Rural 90.5 6,175 1,501
Emmet County Rural 90.1 5,898 1,602
Howard County Rural 92.5 5,841 915
Greene County Rural 93.6 5,765 607
Palo Alto County Rural 93.3 5,646 681
Monona County Rural 92.5 5,643 915
Clarke County Rural 89.3 5,642 1,780
Lucas County Rural 91.8 5,595 1,124
Worth County Rural 93.6 5,019 607
Monroe County Rural 95.4 4,979 177
Adair County Rural 94.9 4,972 279
Davis County Rural 80.9 4,638 2,912
Ida County Rural 94.5 4,448 366
Pocahontas County Rural 90.6 4,418 1,469
Fremont County Rural 93.1 4,390 734
Van Buren County Rural 85.7 4,321 2,427
Decatur County Rural 89.7 4,289 1,685
Wayne County Rural 90.9 3,986 1,369
Taylor County Rural 92.6 3,800 877
Audubon County Rural 92.3 3,755 983
Osceola County Rural 87.4 3,752 2,133
Ringgold County Rural 94.0 3,037 490
Adams County Rural 93.9 2,444 514

Notes:
Created by statecancerprofiles.cancer.gov on 03/27/2026 11:50 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 Education: At least high school, see the dictionary.

Data for United States does not include Puerto Rico.

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