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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 Name
County
 sort alphabetically by name descending
Value (Percent)
 sort by value ascending
People (Age 40 And Over)
 sort by sample size ascending
Rank within US
(of 3143 counties)
 sort by rank ascending
Iowa 47.8 1,518,059 31 of 52
United States 47.9 157,871,085 N/A
Adair County 53.1 3,947 1,196
Adams County 55.9 2,065 639
Allamakee County 54.0 7,596 974
Appanoose County 53.7 6,609 1,044
Audubon County 56.8 3,211 530
Benton County 53.4 13,688 1,117
Black Hawk County 44.3 58,183 2,779
Boone County 52.6 14,065 1,288
Bremer County 48.6 12,082 2,237
Buchanan County 49.0 10,084 2,161
Buena Vista County 44.4 9,194 2,771
Butler County 54.4 7,841 892
Calhoun County 53.0 5,280 1,212
Carroll County 52.3 10,854 1,376
Cass County 56.0 7,372 621
Cedar County 52.9 9,781 1,240
Cerro Gordo County 54.3 23,466 900
Cherokee County 56.8 6,593 525
Chickasaw County 53.4 6,420 1,105
Clarke County 47.7 4,644 2,389
Clay County 51.4 8,434 1,614
Clayton County 56.5 9,698 560
Clinton County 52.8 24,580 1,267
Crawford County 46.0 7,616 2,588
Dallas County 42.1 40,633 2,920
Davis County 45.2 4,094 2,693
Decatur County 45.8 3,538 2,608
Delaware County 54.5 9,534 871
Des Moines County 52.9 20,663 1,239
Dickinson County 58.8 10,316 327
Dubuque County 48.2 47,568 2,303
Emmet County 53.1 5,005 1,195
Fayette County 52.9 10,358 1,232
Floyd County 53.6 8,401 1,058
Franklin County 54.3 5,465 898
Fremont County 56.1 3,763 605
Greene County 54.7 4,828 842
Grundy County 53.0 6,543 1,202
Guthrie County 56.9 6,035 515
Hamilton County 53.2 8,021 1,156
Hancock County 54.9 5,952 792
Hardin County 55.4 9,410 701
Harrison County 52.4 7,644 1,356
Henry County 50.8 10,400 1,777
Howard County 50.4 4,767 1,868
Humboldt County 52.2 5,018 1,415
Ida County 51.5 3,592 1,597
Iowa County 53.7 8,918 1,036
Jackson County 54.0 10,533 968
Jasper County 51.1 19,274 1,666
Jefferson County 52.9 8,378 1,244
Johnson County 37.6 57,140 3,075
Jones County 54.1 11,198 941
Keokuk County 53.9 5,413 1,010
Kossuth County 54.4 8,062 887
Lee County 53.8 18,156 1,016
Linn County 47.4 108,242 2,435
Louisa County 52.7 5,742 1,277
Lucas County 53.9 4,662 995
Lyon County 47.6 5,684 2,409
Madison County 50.8 8,334 1,773
Mahaska County 48.5 10,738 2,247
Marion County 49.5 16,516 2,067
Marshall County 48.2 19,350 2,302
Mills County 52.6 7,713 1,296
Mitchell County 52.7 5,552 1,271
Monona County 55.7 4,862 663
Monroe County 51.6 3,913 1,574
Montgomery County 52.5 5,426 1,323
Muscatine County 47.5 20,496 2,414
O'Brien County 50.9 7,201 1,729
Osceola County 54.3 3,350 907
Page County 55.1 8,405 751
Palo Alto County 52.3 4,701 1,388
Plymouth County 50.5 12,889 1,856
Pocahontas County 54.9 3,891 805
Polk County 43.9 214,394 2,805
Pottawattamie County 49.3 46,166 2,095
Poweshiek County 50.9 9,481 1,736
Ringgold County 53.8 2,548 1,028
Sac County 56.1 5,513 614
Scott County 48.2 83,889 2,311
Shelby County 54.2 6,372 928
Sioux County 42.9 15,294 2,872
Story County 34.3 33,643 3,119
Tama County 51.6 8,811 1,561
Taylor County 53.7 3,188 1,033
Union County 49.5 6,032 2,068
Van Buren County 55.7 4,010 652
Wapello County 49.4 17,442 2,092
Warren County 48.0 24,884 2,336
Washington County 50.3 11,320 1,904
Wayne County 51.6 3,359 1,547
Webster County 48.8 18,120 2,185
Winnebago County 51.3 5,506 1,640
Winneshiek County 51.6 10,365 1,569
Woodbury County 44.9 47,217 2,716
Worth County 54.7 4,074 839
Wright County 52.7 6,841 1,279
Notes:
Created by statecancerprofiles.cancer.gov on 04/14/2024 5:02 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.
Data for United States does not include Puerto Rico.

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