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Demographics Table

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Demographic Data Report for Iowa by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2015-2019 American Community Survey 5-Year Data
Sorted by Name
County
 sort alphabetically by name descending
Value (Percent)
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People (Age 40 And Over)
 sort by sample size ascending
Rank within US
(of 3146 counties)
 sort by rank ascending
Iowa 47.7 1,498,923 27 of 52
United States 47.6 154,520,356 N/A
Adair County 55.4 3,923 723
Adams County 56.5 2,072 567
Allamakee County 54.5 7,527 879
Appanoose County 55.1 6,864 777
Audubon County 57.4 3,200 467
Benton County 52.7 13,501 1,309
Black Hawk County 43.9 58,073 2,793
Boone County 52.4 13,810 1,384
Bremer County 49.8 12,389 1,983
Buchanan County 49.1 10,372 2,125
Buena Vista County 43.7 8,756 2,808
Butler County 55.0 8,040 802
Calhoun County 54.4 5,304 894
Carroll County 52.5 10,653 1,342
Cass County 56.1 7,348 610
Cedar County 53.9 9,950 1,010
Cerro Gordo County 54.5 23,358 871
Cherokee County 55.8 6,330 658
Chickasaw County 55.0 6,613 797
Clarke County 50.4 4,713 1,879
Clay County 53.6 8,686 1,084
Clayton County 56.7 9,993 534
Clinton County 52.7 24,733 1,285
Crawford County 48.5 8,256 2,246
Dallas County 41.5 36,181 2,937
Davis County 45.9 4,092 2,596
Decatur County 46.2 3,683 2,568
Delaware County 53.9 9,269 1,000
Des Moines County 53.2 20,938 1,190
Dickinson County 58.3 9,977 378
Dubuque County 48.7 47,250 2,209
Emmet County 53.3 5,033 1,140
Fayette County 53.4 10,582 1,119
Floyd County 53.7 8,481 1,050
Franklin County 53.2 5,405 1,179
Fremont County 57.1 3,963 506
Greene County 55.0 4,922 794
Grundy County 53.5 6,579 1,109
Guthrie County 55.6 5,936 679
Hamilton County 53.6 8,041 1,067
Hancock County 54.7 5,910 848
Hardin County 55.0 9,383 793
Harrison County 54.3 7,655 915
Henry County 49.6 9,890 2,030
Howard County 51.6 4,759 1,566
Humboldt County 52.6 5,021 1,334
Ida County 53.8 3,715 1,023
Iowa County 52.8 8,549 1,266
Jackson County 54.1 10,495 967
Jasper County 52.2 19,298 1,415
Jefferson County 55.0 9,980 795
Johnson County 36.7 54,566 3,086
Jones County 53.6 11,020 1,075
Keokuk County 54.2 5,525 938
Kossuth County 54.9 8,218 819
Lee County 53.5 18,306 1,112
Linn County 46.8 104,877 2,493
Louisa County 52.2 5,831 1,420
Lucas County 54.6 4,688 861
Lyon County 47.5 5,589 2,404
Madison County 50.8 8,136 1,774
Mahaska County 49.4 10,939 2,069
Marion County 49.1 16,297 2,121
Marshall County 48.6 19,426 2,226
Mills County 52.5 7,894 1,347
Mitchell County 54.3 5,759 924
Monona County 56.3 4,914 587
Monroe County 54.0 4,217 987
Montgomery County 55.5 5,577 707
Muscatine County 47.5 20,355 2,405
O'Brien County 53.5 7,408 1,089
Osceola County 53.8 3,256 1,030
Page County 54.3 8,283 933
Palo Alto County 51.4 4,627 1,614
Plymouth County 50.0 12,541 1,945
Pocahontas County 57.8 3,927 428
Polk County 43.6 209,158 2,811
Pottawattamie County 49.6 46,315 2,031
Poweshiek County 50.8 9,348 1,761
Ringgold County 54.0 2,681 989
Sac County 56.6 5,549 544
Scott County 47.7 82,203 2,371
Shelby County 55.6 6,453 685
Sioux County 41.7 14,528 2,925
Story County 33.5 32,510 3,123
Tama County 53.0 9,031 1,217
Taylor County 52.4 3,231 1,378
Union County 50.3 6,211 1,903
Van Buren County 55.7 3,981 676
Wapello County 49.3 17,334 2,078
Warren County 47.8 23,913 2,354
Washington County 50.5 11,170 1,830
Wayne County 52.7 3,386 1,306
Webster County 48.9 17,879 2,163
Winnebago County 52.0 5,475 1,467
Winneshiek County 51.8 10,491 1,512
Woodbury County 44.5 45,661 2,738
Worth County 54.6 4,067 857
Wright County 52.8 6,721 1,274
Notes:
Created by statecancerprofiles.cancer.gov on 09/26/2022 6:07 am.
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.
Health Service Areas are a single county or cluster of contiguous counties which are relatively self-contained with respect to hospital care. For more detailed information, please see Health Service Area information page. Puerto Rico is being treated as a Health Service Area for this data presentation.
Data for United States does not include Puerto Rico.

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