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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
2017-2021 American Community Survey 5-Year Data
Sorted by Value
County
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Value (Percent)
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People (Age 40 And Over)
 sort by sample size ascending
Rank within US
(of 3143 counties)
 sort by rank ascending
United States 47.9 157,871,085 N/A
Iowa 47.8 1,518,059 31 of 52
Dickinson County 58.8 10,316 327
Guthrie County 56.9 6,035 515
Cherokee County 56.8 6,593 525
Audubon County 56.8 3,211 530
Clayton County 56.5 9,698 560
Fremont County 56.1 3,763 605
Sac County 56.1 5,513 614
Cass County 56.0 7,372 621
Adams County 55.9 2,065 639
Van Buren County 55.7 4,010 652
Monona County 55.7 4,862 663
Hardin County 55.4 9,410 701
Page County 55.1 8,405 751
Hancock County 54.9 5,952 792
Pocahontas County 54.9 3,891 805
Worth County 54.7 4,074 839
Greene County 54.7 4,828 842
Delaware County 54.5 9,534 871
Kossuth County 54.4 8,062 887
Butler County 54.4 7,841 892
Franklin County 54.3 5,465 898
Cerro Gordo County 54.3 23,466 900
Osceola County 54.3 3,350 907
Shelby County 54.2 6,372 928
Jones County 54.1 11,198 941
Jackson County 54.0 10,533 968
Allamakee County 54.0 7,596 974
Lucas County 53.9 4,662 995
Keokuk County 53.9 5,413 1,010
Lee County 53.8 18,156 1,016
Ringgold County 53.8 2,548 1,028
Taylor County 53.7 3,188 1,033
Iowa County 53.7 8,918 1,036
Appanoose County 53.7 6,609 1,044
Floyd County 53.6 8,401 1,058
Chickasaw County 53.4 6,420 1,105
Benton County 53.4 13,688 1,117
Hamilton County 53.2 8,021 1,156
Emmet County 53.1 5,005 1,195
Adair County 53.1 3,947 1,196
Grundy County 53.0 6,543 1,202
Calhoun County 53.0 5,280 1,212
Fayette County 52.9 10,358 1,232
Des Moines County 52.9 20,663 1,239
Cedar County 52.9 9,781 1,240
Jefferson County 52.9 8,378 1,244
Clinton County 52.8 24,580 1,267
Mitchell County 52.7 5,552 1,271
Louisa County 52.7 5,742 1,277
Wright County 52.7 6,841 1,279
Boone County 52.6 14,065 1,288
Mills County 52.6 7,713 1,296
Montgomery County 52.5 5,426 1,323
Harrison County 52.4 7,644 1,356
Carroll County 52.3 10,854 1,376
Palo Alto County 52.3 4,701 1,388
Humboldt County 52.2 5,018 1,415
Wayne County 51.6 3,359 1,547
Tama County 51.6 8,811 1,561
Winneshiek County 51.6 10,365 1,569
Monroe County 51.6 3,913 1,574
Ida County 51.5 3,592 1,597
Clay County 51.4 8,434 1,614
Winnebago County 51.3 5,506 1,640
Jasper County 51.1 19,274 1,666
O'Brien County 50.9 7,201 1,729
Poweshiek County 50.9 9,481 1,736
Madison County 50.8 8,334 1,773
Henry County 50.8 10,400 1,777
Plymouth County 50.5 12,889 1,856
Howard County 50.4 4,767 1,868
Washington County 50.3 11,320 1,904
Marion County 49.5 16,516 2,067
Union County 49.5 6,032 2,068
Wapello County 49.4 17,442 2,092
Pottawattamie County 49.3 46,166 2,095
Buchanan County 49.0 10,084 2,161
Webster County 48.8 18,120 2,185
Bremer County 48.6 12,082 2,237
Mahaska County 48.5 10,738 2,247
Marshall County 48.2 19,350 2,302
Dubuque County 48.2 47,568 2,303
Scott County 48.2 83,889 2,311
Warren County 48.0 24,884 2,336
Clarke County 47.7 4,644 2,389
Lyon County 47.6 5,684 2,409
Muscatine County 47.5 20,496 2,414
Linn County 47.4 108,242 2,435
Crawford County 46.0 7,616 2,588
Decatur County 45.8 3,538 2,608
Davis County 45.2 4,094 2,693
Woodbury County 44.9 47,217 2,716
Buena Vista County 44.4 9,194 2,771
Black Hawk County 44.3 58,183 2,779
Polk County 43.9 214,394 2,805
Sioux County 42.9 15,294 2,872
Dallas County 42.1 40,633 2,920
Johnson County 37.6 57,140 3,075
Story County 34.3 33,643 3,119
Notes:
Created by statecancerprofiles.cancer.gov on 04/18/2024 12:33 pm.
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.

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