Iowa Non-Hispanic White Alone Citizen Population By County in 2019 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the Non-Hispanic White Alone citizen population for Iowa was 3,186,580 and represented 104.83% of the total Iowa citizen population.

Among all Iowa counties, Polk had the highest Non-Hispanic White Alone citizen population (369.88K), followed by Linn (191.62K), and Scott (137.64K).

In terms of percentages, Monroe had the highest percentage of its citizen population being Non-Hispanic White Alone (98.53%), followed by Adams (98.36%), and Lucas (98.05%).

The chart and table below shows the Non-Hispanic White Alone citizen population of each county and the percentage of each county's citizen population that were Non-Hispanic White Alone.

You can see similar information for other states and by state for the United States.

You can also see similar information for other ethnicities.

See this for other years:
Iowa Non-Hispanic White Alone Citizen Population By County in 2019
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County Citizen Population % of County Citizen Population
Polk 369880 81.37
Linn 191615 87.86
Scott 137635 81.62
Johnson 115135 84.55
Black Hawk 106380 83.46
Dubuque 87780 92.06
Pottawattamie 81610 89.45
Story 80355 89.29
Woodbury 74725 75.68
Dallas 74170 88.72
Warren 47060 94.50
Clinton 42740 91.73
Cerro Gordo 38645 91.18
Jasper 34490 93.94
Des Moines 34255 87.88
Muscatine 32850 79.24
Webster 31800 88.58
Marion 31335 95.13
Lee 31065 91.09
Sioux 30075 90.26
Wapello 28850 86.34
Marshall 28220 77.86
Boone 24870 94.91
Benton 24690 96.69
Bremer 23645 95.83
Plymouth 22940 93.37
Mahaska 20650 94.31
Buchanan 20285 96.39
Washington 19975 92.43
Carroll 19640 97.61
Jones 19260 94.32
Winneshiek 19205 96.03
Fayette 18555 94.26
Jackson 18510 96.13
Cedar 17630 96.10
Henry 17555 89.68
Clayton 16880 97.10
Poweshiek 16775 93.09
Delaware 16560 96.79
Dickinson 16335 96.34
Hardin 15620 92.98
Iowa 15355 95.31
Madison 15260 96.10
Clay 15075 94.48
Jefferson 14515 86.40
Floyd 14435 92.21
Kossuth 14165 95.36
Mills 14135 94.68
Butler 14110 96.61
Page 13890 92.35
Tama 13755 83.06
Harrison 13540 96.40
Hamilton 13340 90.84
O'Brien 12770 93.42
Cass 12475 96.44
Allamakee 12465 92.99
Buena Vista 11940 69.12
Grundy 11920 97.07
Appanoose 11840 95.60
Union 11615 95.05
Chickasaw 11515 96.97
Lyon 11250 96.73
Crawford 11205 76.04
Shelby 10950 95.34
Wright 10880 88.71
Cherokee 10575 93.96
Mitchell 10255 97.30
Guthrie 10140 96.57
Hancock 10060 94.20
Keokuk 9815 97.13
Winnebago 9620 92.19
Montgomery 9415 94.96
Sac 9300 95.78
Calhoun 9175 94.69
Humboldt 8915 95.09
Howard 8890 96.79
Franklin 8770 89.08
Louisa 8720 83.33
Davis 8620 96.91
Greene 8445 95.05
Palo Alto 8395 95.29
Lucas 8280 98.05
Monona 8260 94.67
Emmet 8185 89.16
Clarke 7730 86.47
Monroe 7685 98.53
Decatur 7360 93.82
Worth 7005 94.34
Van Buren 6885 96.50
Adair 6775 96.79
Fremont 6570 95.43
Ida 6545 95.55
Pocahontas 6290 94.94
Wayne 6165 96.40
Taylor 5570 92.99
Osceola 5385 92.37
Audubon 5370 96.58
Ringgold 4735 96.63
Adams 3600 98.36