Donald Trump carried Iowa R+9.3.

Hillary Clinton (D) vs Donald Trump (R) in Iowa, 2016. The state ran 11.4 points more Republican than the nation (D+2.1 nationally). A US Senate contest shared the 2016 ballot here.

Nominees: Hillary Clinton (D) · Donald Trump (R)

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Iowa result

1,581,371 votes counted

Clinton (D)

653,669

41.3%

Trump (R)

800,983

50.7%

All others

126,719

8.0%

Margin

R+9.3

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2016 presidential election

Iowa, 2016

TrumpR+9.3

How it voted

Share of the 2016 vote

Donald Trump ✓Republican	50.7%	800,983
Hillary ClintonDemocratic	41.3%	653,669
Gary JohnsonLibertarian	8.0%	126,719

D+60

R+60

99 counties, each filled by 2016 D-vs-R margin. Hover any county for its result.

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Iowa's presidential margins

1892–2024, the 2016 contest in context

Iowa's presidential margins

Year	Margin (D minus R)
1892	−5.3%
1896	−12.6%
1900	−18.6%
1904	−32.7%
1908	−15.0%
1912	+13.3%
1916	−11.4%
1920	−45.5%
1924	−38.6%
1928	−24.2%
1932	+17.7%
1936	+11.7%
1940	−4.4%
1944	−4.5%
1948	+2.7%
1952	−28.2%
1956	−18.4%
1960	−13.5%
1964	+24.0%
1968	−12.2%
1972	−17.1%
1976	−1.0%
1980	−12.7%
1984	−7.4%
1988	+10.2%
1992	+6.0%
1996	+10.3%
2000	+0.3%
2004	−0.7%
2008	+9.5%
2012	+5.8%
2016	−9.3%
2020	−8.2%
2024	−13.2%

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County results — 2016

99 counties; every row links to the county's full page.

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County	Won	Margin	Democratic	Republican	Total
Adair County	R	−34.5%	1,133	2,461	3,848
Adams County	R	−38.9%	565	1,395	2,131
Allamakee County	R	−23.8%	2,421	4,093	7,035
Appanoose County	R	−35.8%	1,814	4,033	6,196
Audubon County	R	−30.3%	1,080	2,136	3,486
Benton County	R	−25.4%	4,678	8,232	13,971
Black Hawk County	D	+7.3%	32,233	27,476	65,007
Boone County	R	−13.6%	5,541	7,484	14,310
Bremer County	R	−13.5%	5,356	7,208	13,691
Buchanan County	R	−14.8%	3,970	5,510	10,377
Buena Vista County	R	−24.4%	2,856	4,903	8,381
Butler County	R	−36.4%	2,157	4,921	7,583
Calhoun County	R	−39.7%	1,398	3,468	5,218
Carroll County	R	−31.2%	3,309	6,638	10,682
Cass County	R	−39.0%	1,951	4,761	7,198
Cedar County	R	−17.6%	3,599	5,295	9,631
Cerro Gordo County	R	−7.6%	9,862	11,621	23,137
Cherokee County	R	−39.8%	1,679	4,192	6,315
Chickasaw County	R	−22.6%	2,266	3,742	6,518
Clarke County	R	−27.7%	1,465	2,713	4,509
Clay County	R	−41.7%	2,249	5,877	8,706
Clayton County	R	−22.6%	3,237	5,317	9,217
Clinton County	R	−5.1%	10,095	11,276	23,347
Crawford County	R	−37.3%	1,991	4,617	7,037
Dallas County	R	−9.4%	15,701	19,339	38,588
Davis County	R	−44.3%	977	2,723	3,943
Decatur County	R	−28.9%	1,201	2,296	3,784
Delaware County	R	−29.3%	2,957	5,694	9,339
Des Moines County	R	−6.8%	8,212	9,529	19,271
Dickinson County	R	−35.4%	3,056	6,753	10,457
Dubuque County	R	−1.2%	22,850	23,460	50,221
Emmet County	R	−36.7%	1,357	3,124	4,810
Fayette County	R	−19.1%	3,689	5,620	10,098
Floyd County	R	−14.7%	3,179	4,375	8,159
Franklin County	R	−33.1%	1,493	3,163	5,046
Fremont County	R	−39.7%	963	2,407	3,633
Greene County	R	−23.2%	1,691	2,820	4,876
Grundy County	R	−38.5%	1,856	4,527	6,944
Guthrie County	R	−32.6%	1,732	3,628	5,816
Hamilton County	R	−22.3%	2,726	4,463	7,785
Hancock County	R	−40.3%	1,587	3,977	5,933
Hardin County	R	−28.6%	2,787	5,254	8,639
Harrison County	R	−36.7%	2,131	4,902	7,552
Henry County	R	−30.3%	2,904	5,779	9,500
Howard County	R	−20.1%	1,677	2,611	4,640
Humboldt County	R	−45.0%	1,252	3,568	5,141
Ida County	R	−51.1%	792	2,655	3,648
Iowa County	R	−23.6%	3,084	5,205	9,002
Jackson County	R	−18.9%	3,837	5,824	10,504
Jasper County	R	−17.9%	7,109	10,560	19,226
Jefferson County	R	−0.5%	3,710	3,748	8,285
Johnson County	D	+37.6%	50,200	21,044	77,476
Jones County	R	−18.9%	3,787	5,720	10,236
Keokuk County	R	−40.7%	1,342	3,390	5,035
Kossuth County	R	−35.6%	2,543	5,653	8,742
Lee County	R	−15.8%	6,215	8,803	16,347
Linn County	D	+8.9%	58,935	48,390	118,116
Louisa County	R	−28.0%	1,648	3,069	5,076
Lucas County	R	−37.3%	1,239	2,877	4,392
Lyon County	R	−66.4%	920	5,192	6,431
Madison County	R	−30.8%	2,678	5,360	8,706
Mahaska County	R	−44.9%	2,619	7,432	10,723
Marion County	R	−30.5%	5,482	10,962	17,991
Marshall County	R	−8.2%	7,652	9,146	18,175
Mills County	R	−38.3%	2,090	5,067	7,772
Mitchell County	R	−23.6%	1,888	3,190	5,521
Monona County	R	−40.5%	1,247	3,120	4,629
Monroe County	R	−40.5%	1,056	2,638	3,907
Montgomery County	R	−41.6%	1,314	3,436	5,102
Muscatine County	R	−6.2%	8,368	9,584	19,623
O'Brien County	R	−59.5%	1,315	5,752	7,460
Osceola County	R	−60.9%	552	2,531	3,251
Page County	R	−43.3%	1,807	4,893	7,121
Palo Alto County	R	−35.4%	1,398	3,081	4,760
Plymouth County	R	−51.2%	2,885	9,680	13,274
Pocahontas County	R	−44.4%	963	2,702	3,918
Polk County	D	+11.3%	119,804	93,492	233,385
Pottawattamie County	R	−21.1%	15,355	24,447	43,058
Poweshiek County	R	−6.5%	4,304	4,946	9,916
Ringgold County	R	−38.9%	753	1,824	2,752
Sac County	R	−46.3%	1,270	3,703	5,257
Scott County	D	+1.5%	40,440	39,149	87,286
Shelby County	R	−41.9%	1,662	4,362	6,448
Sioux County	R	−68.1%	2,300	14,785	18,332
Story County	D	+12.3%	25,709	19,458	50,974
Tama County	R	−20.0%	3,196	4,971	8,866
Taylor County	R	−44.1%	758	2,111	3,065
Union County	R	−27.2%	1,922	3,525	5,885
Van Buren County	R	−46.8%	845	2,527	3,595
Wapello County	R	−20.4%	5,594	8,715	15,277
Warren County	R	−16.0%	10,411	14,814	27,507
Washington County	R	−20.1%	3,943	6,173	11,092
Wayne County	R	−45.2%	719	2,069	2,989
Webster County	R	−21.3%	6,305	10,056	17,593
Winnebago County	R	−25.9%	1,931	3,447	5,864
Winneshiek County	R	−0.8%	5,254	5,344	11,511
Woodbury County	R	−19.3%	16,210	24,727	44,167
Worth County	R	−21.4%	1,530	2,453	4,305
Wright County	R	−31.3%	1,896	3,800	6,092