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Demographic Data Report for Iowa by County
Population: Age 18-39
All Races (includes Hispanic), Both Sexes
2017-2021 American Community Survey 5-Year Data
Sorted by Rank
County
 sort alphabetically by name ascending
Value (Percent)
 sort by value descending
People (Age 18-39)
 sort by sample size descending
Rank within US
(of 3143 counties)
 sort by rank descending
Iowa 28.9 918,856 20 of 52
United States 29.6 97,620,321 N/A
Cherokee County 20.5 2,384 217
Guthrie County 20.8 2,208 256
Audubon County 21.0 1,187 280
Fremont County 21.1 1,411 288
Van Buren County 21.1 1,515 288
Cass County 21.2 2,788 306
Delaware County 21.5 3,764 343
Sac County 21.6 2,123 363
Dickinson County 21.7 3,797 375
Clayton County 21.8 3,744 403
Osceola County 22.0 1,356 434
Ringgold County 22.0 1,042 435
Monona County 22.0 1,920 436
Allamakee County 22.2 3,121 472
Franklin County 22.2 2,232 475
Wayne County 22.5 1,461 523
Wright County 22.5 2,916 524
Pocahontas County 22.5 1,596 536
Butler County 22.6 3,257 556
Adams County 22.7 838 580
Chickasaw County 22.7 2,729 584
Greene County 22.7 2,006 590
Taylor County 22.9 1,356 622
Keokuk County 23.0 2,315 668
Iowa County 23.1 3,827 675
Montgomery County 23.1 2,386 684
Mitchell County 23.2 2,437 702
Benton County 23.2 5,950 710
Hancock County 23.2 2,518 723
Kossuth County 23.4 3,464 763
Lucas County 23.4 2,024 778
Grundy County 23.4 2,890 789
Appanoose County 23.4 2,885 793
Floyd County 23.5 3,680 802
Ida County 23.7 1,654 868
Carroll County 23.7 4,921 870
Shelby County 23.8 2,792 885
Madison County 23.8 3,901 887
Mills County 23.8 3,488 898
Hamilton County 23.8 3,588 901
Jackson County 23.8 4,642 902
Humboldt County 23.9 2,296 914
Howard County 24.0 2,271 951
Monroe County 24.0 1,823 954
Palo Alto County 24.1 2,164 960
Lyon County 24.1 2,877 969
Tama County 24.1 4,114 981
Jones County 24.1 4,984 985
Harrison County 24.1 3,522 993
Des Moines County 24.3 9,498 1,045
Plymouth County 24.3 6,213 1,052
Clinton County 24.4 11,364 1,070
Lee County 24.5 8,267 1,122
Calhoun County 24.6 2,446 1,138
Adair County 24.6 1,829 1,148
Worth County 24.6 1,834 1,160
Cerro Gordo County 24.6 10,633 1,164
Louisa County 24.6 2,683 1,168
Buchanan County 24.7 5,084 1,181
Hardin County 24.8 4,209 1,217
Washington County 24.8 5,589 1,236
Page County 24.9 3,804 1,286
Cedar County 25.0 4,621 1,308
O'Brien County 25.0 3,533 1,309
Davis County 25.2 2,281 1,364
Clay County 25.2 4,129 1,365
Boone County 25.7 6,876 1,553
Fayette County 25.7 5,041 1,557
Clarke County 26.2 2,546 1,695
Marshall County 26.2 10,530 1,723
Emmet County 26.4 2,493 1,800
Jasper County 26.5 9,970 1,809
Winnebago County 26.6 2,855 1,847
Jefferson County 26.9 4,262 1,948
Pottawattamie County 27.0 25,221 1,968
Marion County 27.1 9,036 2,005
Warren County 27.2 14,120 2,056
Wapello County 27.4 9,680 2,104
Mahaska County 27.5 6,078 2,130
Henry County 27.6 5,655 2,151
Muscatine County 27.6 11,912 2,155
Union County 27.9 3,400 2,225
Scott County 28.0 48,729 2,248
Bremer County 28.5 7,080 2,346
Crawford County 28.6 4,729 2,363
Dubuque County 28.9 28,501 2,428
Woodbury County 28.9 30,394 2,436
Poweshiek County 29.1 5,414 2,470
Linn County 29.3 67,030 2,513
Buena Vista County 29.4 6,099 2,534
Webster County 29.7 11,027 2,570
Sioux County 29.7 10,594 2,573
Winneshiek County 29.8 5,995 2,599
Dallas County 30.5 29,426 2,689
Polk County 31.2 152,650 2,770
Decatur County 32.3 2,496 2,859
Black Hawk County 33.8 44,370 2,937
Johnson County 42.4 64,319 3,101
Story County 49.1 48,147 3,133
Notes:
Created by statecancerprofiles.cancer.gov on 03/28/2024 4:07 pm.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 18-39, see the dictionary.
Data for United States does not include Puerto Rico.

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