Iowa Non-Hispanic White Alone Citizen Voting-age Population By County in 2016 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2016, the Non-Hispanic White Alone citizen voting-age population for Iowa was 2,546,550 and represented 110.96% of the total Iowa citizen voting-age population.

Among all Iowa counties, Polk had the highest Non-Hispanic White Alone citizen voting-age population (281.31K), followed by Linn (149.15K), and Scott (109.35K).

In terms of percentages, Monroe had the highest percentage of its citizen voting-age population being Non-Hispanic White Alone (98.91%), followed by Benton (98.76%), and Chickasaw (98.47%).

The chart and table below shows the Non-Hispanic White Alone citizen voting-age population of each county and the percentage of each county's citizen voting-age 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 Voting-age Population By County in 2016
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County Citizen Voting-age Population % of County Citizen Voting-age Population
Polk 281305 87.13
Linn 149150 91.94
Scott 109350 86.18
Johnson 92545 88.73
Black Hawk 88615 87.73
Dubuque 69205 94.79
Story 66580 91.91
Pottawattamie 64465 93.10
Woodbury 60405 86.12
Dallas 49160 93.12
Warren 34495 96.33
Clinton 34430 94.25
Cerro Gordo 31865 94.07
Des Moines 28120 91.90
Jasper 27115 95.36
Muscatine 26345 86.18
Webster 26190 92.02
Lee 25340 92.62
Marshall 24315 90.29
Marion 24075 96.40
Wapello 23790 93.50
Sioux 22675 95.47
Boone 19635 96.42
Benton 19080 98.76
Bremer 18520 97.45
Plymouth 17775 96.84
Winneshiek 16160 97.38
Mahaska 16110 95.47
Washington 15460 94.38
Fayette 15260 96.10
Jones 15150 95.61
Carroll 15050 97.03
Buchanan 15030 98.04
Jackson 14665 96.93
Henry 13990 91.98
Cedar 13680 97.19
Poweshiek 13660 94.63
Clayton 13380 97.81
Dickinson 13335 97.73
Delaware 12920 98.44
Hardin 12765 96.49
Clay 12185 97.05
Iowa 12095 97.50
Floyd 11695 96.10
Jefferson 11540 93.44
Page 11490 95.23
Tama 11475 89.33
Kossuth 11455 97.53
Madison 11275 98.43
Butler 11155 97.77
Hamilton 10835 95.17
Mills 10770 95.56
Harrison 10760 97.60
Buena Vista 10490 80.57
O'Brien 10235 97.06
Allamakee 10145 96.80
Cass 10050 96.68
Appanoose 9470 96.98
Crawford 9470 84.74
Grundy 9290 98.46
Union 9195 96.64
Chickasaw 9020 98.47
Wright 8990 96.00
Cherokee 8895 96.42
Shelby 8840 97.36
Lyon 8170 97.73
Hancock 8120 96.78
Guthrie 7985 97.50
Mitchell 7950 98.21
Winnebago 7755 94.98
Montgomery 7670 96.66
Keokuk 7655 97.64
Sac 7530 97.60
Calhoun 7455 95.58
Franklin 7160 92.21
Humboldt 7060 97.58
Louisa 7025 88.87
Emmet 6990 93.26
Howard 6905 97.81
Monona 6835 95.59
Palo Alto 6795 98.05
Greene 6735 97.19
Lucas 6360 96.95
Clarke 6165 92.92
Davis 6090 98.38
Decatur 5970 94.02
Monroe 5915 98.91
Worth 5695 96.20
Adair 5585 98.24
Van Buren 5520 97.96
Fremont 5250 96.51
Pocahontas 5225 96.85
Ida 5195 96.92
Wayne 4705 97.21
Audubon 4510 98.04
Osceola 4415 97.25
Taylor 4410 94.94
Ringgold 3735 97.78
Adams 2930 97.34