Donald Trump carried Iowa R+8.2.

Joe Biden (D) vs Donald Trump (R) in Iowa, 2020. The state ran 12.6 points more Republican than the nation (D+4.5 nationally). A US Senate contest shared the 2020 ballot here.

Nominees: Joe Biden (D) · Donald Trump (R)

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Iowa result

1,690,871 votes counted

Biden (D)

759,061

44.9%

Trump (R)

897,672

53.1%

All others

34,138

2.0%

Margin

R+8.2

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2020 presidential election

Iowa, 2020

TrumpR+8.2

How it voted

Share of the 2020 vote

Donald Trump ✓Republican	53.1%	897,672
Joe BidenDemocratic	44.9%	759,061
Jo JorgensenLibertarian	2.0%	34,138

D+60

R+60

99 counties, each filled by 2020 D-vs-R margin. Hover any county for its result.

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Iowa's presidential margins

1892–2024, the 2020 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 — 2020

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

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County	Won	Margin	Democratic	Republican	Total
Adair County	R	−41.2%	1,198	2,917	4,177
Adams County	R	−43.5%	590	1,530	2,160
Allamakee County	R	−29.1%	2,576	4,735	7,422
Appanoose County	R	−40.2%	1,891	4,512	6,516
Audubon County	R	−35.8%	1,071	2,295	3,420
Benton County	R	−27.5%	5,160	9,188	14,642
Black Hawk County	D	+9.0%	35,647	29,640	66,593
Boone County	R	−15.6%	6,303	8,695	15,340
Bremer County	R	−16.1%	5,958	8,294	14,546
Buchanan County	R	−20.9%	4,169	6,420	10,774
Buena Vista County	R	−25.7%	2,961	5,056	8,167
Butler County	R	−38.5%	2,424	5,542	8,098
Calhoun County	R	−42.2%	1,470	3,689	5,258
Carroll County	R	−37.8%	3,454	7,737	11,335
Cass County	R	−38.0%	2,201	4,969	7,276
Cedar County	R	−17.0%	4,337	6,161	10,703
Cerro Gordo County	R	−6.3%	10,941	12,442	23,801
Cherokee County	R	−39.3%	1,936	4,495	6,518
Chickasaw County	R	−31.3%	2,233	4,308	6,631
Clarke County	R	−35.9%	1,466	3,144	4,670
Clay County	R	−38.7%	2,662	6,137	8,969
Clayton County	R	−28.8%	3,340	6,106	9,594
Clinton County	R	−10.3%	10,812	13,361	24,687
Crawford County	R	−36.8%	2,220	4,854	7,154
Dallas County	R	−2.0%	26,879	27,987	56,022
Davis County	R	−49.2%	1,013	3,032	4,102
Decatur County	R	−39.3%	1,120	2,615	3,804
Delaware County	R	−35.1%	3,157	6,666	10,003
Des Moines County	R	−8.5%	8,893	10,592	19,956
Dickinson County	R	−33.6%	3,661	7,438	11,244
Dubuque County	R	−2.9%	25,657	27,214	53,926
Emmet County	R	−36.0%	1,520	3,265	4,853
Fayette County	R	−22.7%	3,835	6,145	10,186
Floyd County	R	−19.4%	3,172	4,732	8,032
Franklin County	R	−35.0%	1,626	3,422	5,130
Fremont County	R	−42.3%	1,080	2,711	3,857
Greene County	R	−28.8%	1,769	3,223	5,057
Grundy County	R	−37.4%	2,206	4,929	7,276
Guthrie County	R	−35.9%	1,985	4,272	6,371
Hamilton County	R	−26.6%	2,843	4,956	7,943
Hancock County	R	−43.9%	1,683	4,390	6,172
Hardin County	R	−32.0%	2,976	5,850	8,989
Harrison County	R	−38.4%	2,440	5,569	8,155
Henry County	R	−32.4%	3,275	6,507	9,982
Howard County	R	−27.3%	1,772	3,127	4,958
Humboldt County	R	−44.6%	1,442	3,819	5,327
Ida County	R	−51.0%	917	2,880	3,849
Iowa County	R	−25.3%	3,547	6,009	9,742
Jackson County	R	−26.1%	4,029	6,940	11,135
Jasper County	R	−21.5%	7,737	12,084	20,184
Jefferson County	R	−1.4%	4,319	4,443	8,959
Johnson County	D	+43.2%	59,177	22,925	83,851
Jones County	R	−21.5%	4,213	6,572	10,989
Keokuk County	R	−44.9%	1,414	3,797	5,303
Kossuth County	R	−39.4%	2,696	6,275	9,090
Lee County	R	−19.3%	6,541	9,773	16,734
Linn County	D	+13.7%	70,874	53,364	127,458
Louisa County	R	−33.3%	1,726	3,500	5,332
Lucas County	R	−43.3%	1,284	3,287	4,630
Lyon County	R	−67.6%	1,067	5,707	6,863
Madison County	R	−34.3%	3,134	6,507	9,824
Mahaska County	R	−47.4%	2,894	8,297	11,404
Marion County	R	−33.7%	6,178	12,663	19,232
Marshall County	R	−7.7%	8,176	9,571	18,136
Mills County	R	−37.2%	2,508	5,585	8,268
Mitchell County	R	−27.9%	2,053	3,677	5,822
Monona County	R	−38.9%	1,407	3,248	4,728
Monroe County	R	−46.4%	1,078	2,975	4,088
Montgomery County	R	−39.0%	1,583	3,659	5,327
Muscatine County	R	−7.0%	9,372	10,823	20,671
O'Brien County	R	−56.8%	1,569	5,861	7,551
Osceola County	R	−62.8%	601	2,690	3,328
Page County	R	−42.9%	2,086	5,319	7,528
Palo Alto County	R	−37.3%	1,519	3,370	4,958
Plymouth County	R	−49.3%	3,494	10,492	14,188
Pocahontas County	R	−49.5%	933	2,826	3,823
Polk County	D	+15.2%	146,250	106,800	258,755
Pottawattamie County	R	−16.8%	18,575	26,247	45,744
Poweshiek County	R	−13.3%	4,306	5,657	10,140
Ringgold County	R	−46.4%	709	1,968	2,714
Sac County	R	−48.3%	1,389	4,061	5,535
Scott County	D	+3.5%	46,926	43,683	92,599
Shelby County	R	−40.3%	1,959	4,697	6,795
Sioux County	R	−66.5%	3,019	15,680	19,051
Story County	D	+17.3%	29,175	20,340	51,038
Tama County	R	−19.1%	3,577	5,303	9,048
Taylor County	R	−52.8%	746	2,463	3,249
Union County	R	−31.5%	2,061	4,010	6,185
Van Buren County	R	−52.3%	875	2,859	3,791
Wapello County	R	−23.6%	5,821	9,516	15,633
Warren County	R	−16.8%	12,574	17,782	31,039
Washington County	R	−20.5%	4,561	6,971	11,765
Wayne County	R	−51.8%	727	2,338	3,109
Webster County	R	−24.3%	6,613	10,938	17,822
Winnebago County	R	−26.3%	2,135	3,707	5,970
Winneshiek County	R	−5.1%	5,617	6,235	12,064
Woodbury County	R	−15.5%	18,704	25,736	45,362
Worth County	R	−25.8%	1,596	2,738	4,418
Wright County	R	−34.2%	1,996	4,136	6,254