Iowa White Alone Population By County in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the White Alone population in Iowa was 2,860,390 and represented 91.61% of the total Iowa population (3,122,541).

Among Iowa counties, Polk County had the highest number of people who identified as White Alone (402,068), followed by Linn County (197,766), and Scott County (148,503). Adams County had the lowest (3,673).

In the map below, we show the number and percentage of each county's White Alone population, as well as the gender percentages when you interact with the map. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

You can also see similar information for other racial and ethnicity groups in Iowa.

See this for other years:
Iowa White Alone Population By County in 2015
Iowa White Alone Population By County in 2015
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County White Alone Population % of County Population
Adair 7014 98.21
Adams 3673 97.89
Allamakee 13405 96.57
Appanoose 12245 97.28
Audubon 5594 98.02
Benton 25045 97.8
Black Hawk 114426 85.54
Boone 25615 96.78
Bremer 23928 96.66
Buchanan 20644 97.79
Buena Vista 17259 84.72
Butler 14569 97.91
Calhoun 9448 96.4
Carroll 19873 97.32
Cass 13061 97.81
Cedar 17814 97.57
Cerro Gordo 41061 95.48
Cherokee 11137 96.95
Chickasaw 11940 98.26
Clarke 8881 96.4
Clay 16025 97.13
Clayton 17340 97.82
Clinton 44772 94.07
Crawford 15819 92.68
Dallas 74053 91.81
Davis 8620 98.25
Decatur 7775 95.46
Delaware 17110 98.36
Des Moines 36035 90.29
Dickinson 16630 97.77
Dubuque 90484 93.35
Emmet 9222 94.99
Fayette 19408 96.35
Floyd 15073 94.68
Franklin 9990 96.82
Fremont 6745 97.61
Greene 8730 97.58
Grundy 12181 98.22
Guthrie 10418 97.79
Hamilton 14484 95.16
Hancock 10743 97.41
Hardin 16599 96.19
Harrison 13859 97.98
Henry 18446 92.87
Howard 9150 98.16
Humboldt 9340 97.68
Ida 6817 97.85
Iowa 15932 97.78
Jackson 18787 97.03
Jasper 35292 96
Jefferson 14961 83.52
Johnson 122195 84.21
Jones 19594 95.89
Keokuk 9985 98.19
Kossuth 14775 97.53
Lee 32894 94.21
Linn 197766 89.73
Louisa 10509 93.09
Lucas 8466 98.34
Lyon 11547 98.23
Madison 15325 97.44
Mahaska 21433 95.61
Marion 31949 96.46
Marshall 37148 92.09
Mills 14464 97.17
Mitchell 10475 98.17
Monona 8584 96.83
Monroe 7711 97.37
Montgomery 9902 97.53
Muscatine 40510 94.06
O'Brien 13516 97.05
Osceola 5991 97.24
Page 14590 94.34
Palo Alto 8810 96.42
Plymouth 24089 96.7
Pocahontas 6722 96.44
Polk 402068 86
Pottawattamie 88904 94.93
Poweshiek 17400 94.67
Ringgold 4875 97.93
Sac 9764 98.02
Scott 148503 86.3
Shelby 11497 97.44
Sioux 33693 96.92
Story 84278 87.11
Tama 15193 88.26
Taylor 6104 97.77
Union 12038 96.84
Van Buren 7162 98.15
Wapello 33118 93.42
Warren 47059 97.06
Washington 21484 96.95
Wayne 6224 97.88
Webster 34120 92
Winnebago 10182 95.95
Winneshiek 20168 97.17
Woodbury 90432 88.2
Worth 7271 96.91
Wright 12431 96.79