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United States · Election results history · 2020 president · Iowa
Election 2020 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2020 presidential election in Iowa

Donald Trump (Republican) beat Joe Biden (Democrat) in Iowa in 2020, 53.1% to 44.9%, a margin of 8.2 points and 138,611 votes.

Iowa voted 12.7 points more Republican than the country as a whole, where the margin was D+4.5.

The Republican hold continued from 2016, when Donald Trump also won.

Republicans led in 93 of the 99 counties and Democrats in 6. The largest, Polk, cast 258,758 votes and went to the Democrat by 15.2 points. The closest was Jefferson, where 124 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Result

CandidatePartyVotesShare
Donald Trump won Republican 897,672 53.1%
Joe Biden Democratic 759,061 44.9%
All other candidates 34,138 2.0%
Total1,690,871

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 146,251 56.5% 106,801 41.3% 5,706 258,758 D+15.2
Linn 70,876 55.6% 53,367 41.9% 3,219 127,462 D+13.7
Scott 46,926 50.7% 43,682 47.2% 1,990 92,598 D+3.5
Johnson 59,177 70.6% 22,926 27.3% 1,749 83,852 D+43.2
Black Hawk 35,646 53.5% 29,638 44.5% 1,306 66,590 D+9.0
Dallas 26,877 48.0% 27,985 50.0% 1,156 56,018 R+2.0
Dubuque 25,656 47.6% 27,212 50.5% 1,055 53,923 R+2.9
Story 29,175 57.2% 20,340 39.9% 1,522 51,037 D+17.3
Pottawattamie 18,575 40.6% 26,246 57.4% 922 45,743 R+16.8
Woodbury 18,704 41.2% 25,736 56.7% 921 45,361 R+15.5
Warren 12,574 40.5% 17,782 57.3% 683 31,039 R+16.8
Clinton 10,813 43.8% 13,362 54.1% 514 24,689 R+10.3
Cerro Gordo 10,941 46.0% 12,442 52.3% 418 23,801 R+6.3
Muscatine 9,371 45.3% 10,822 52.4% 477 20,670 R+7.0
Jasper 7,737 38.3% 12,084 59.9% 363 20,184 R+21.5
Des Moines 8,893 44.6% 10,592 53.1% 471 19,956 R+8.5
Marion 6,178 32.1% 12,663 65.8% 391 19,232 R+33.7
Sioux 3,019 15.8% 15,679 82.3% 351 19,049 R+66.5
Marshall 8,176 45.1% 9,571 52.8% 389 18,136 R+7.7
Webster 6,613 37.1% 10,938 61.4% 271 17,822 R+24.3
Lee 6,541 39.1% 9,773 58.4% 421 16,735 R+19.3
Wapello 5,821 37.2% 9,516 60.9% 296 15,633 R+23.6
Boone 6,303 41.1% 8,695 56.7% 342 15,340 R+15.6
Benton 5,159 35.2% 9,186 62.8% 294 14,639 R+27.5
Bremer 5,958 41.0% 8,294 57.0% 294 14,546 R+16.1
Plymouth 3,495 24.6% 10,493 74.0% 201 14,189 R+49.3
Winneshiek 5,617 46.6% 6,235 51.7% 212 12,064 R+5.1
Washington 4,560 38.8% 6,970 59.3% 233 11,763 R+20.5
Mahaska 2,894 25.4% 8,297 72.8% 213 11,404 R+47.4
Carroll 3,454 30.5% 7,737 68.3% 143 11,334 R+37.8
Dickinson 3,661 32.6% 7,438 66.2% 145 11,244 R+33.6
Jackson 4,029 36.2% 6,940 62.3% 166 11,135 R+26.1
Jones 4,213 38.3% 6,572 59.8% 204 10,989 R+21.5
Buchanan 4,169 38.7% 6,420 59.6% 186 10,775 R+20.9
Cedar 4,337 40.5% 6,161 57.6% 205 10,703 R+17.0
Fayette 3,835 37.7% 6,145 60.3% 205 10,185 R+22.7
Poweshiek 4,306 42.5% 5,657 55.8% 177 10,140 R+13.3
Delaware 3,158 31.6% 6,667 66.6% 180 10,005 R+35.1
Henry 3,275 32.8% 6,506 65.2% 200 9,981 R+32.4
Madison 3,135 31.9% 6,508 66.2% 183 9,826 R+34.3
Iowa 3,547 36.4% 6,009 61.7% 186 9,742 R+25.3
Clayton 3,340 34.8% 6,106 63.6% 148 9,594 R+28.8
Kossuth 2,696 29.7% 6,276 69.0% 119 9,091 R+39.4
Tama 3,577 39.5% 5,303 58.6% 168 9,048 R+19.1
Hardin 2,976 33.1% 5,850 65.1% 163 8,989 R+32.0
Clay 2,662 29.7% 6,137 68.4% 171 8,970 R+38.7
Jefferson 4,319 48.2% 4,443 49.6% 197 8,959 R+1.4
Mills 2,508 30.3% 5,585 67.5% 176 8,269 R+37.2
Buena Vista 2,961 36.3% 5,056 61.9% 150 8,167 R+25.7
Harrison 2,440 29.9% 5,569 68.3% 146 8,155 R+38.4
Butler 2,424 29.9% 5,542 68.4% 132 8,098 R+38.5
Floyd 3,172 39.5% 4,732 58.9% 127 8,031 R+19.4
Hamilton 2,843 35.8% 4,956 62.4% 144 7,943 R+26.6
O'Brien 1,569 20.8% 5,861 77.6% 121 7,551 R+56.8
Page 2,086 27.7% 5,319 70.7% 123 7,528 R+42.9
Allamakee 2,577 34.7% 4,736 63.8% 111 7,424 R+29.1
Grundy 2,207 30.3% 4,930 67.7% 141 7,278 R+37.4
Cass 2,201 30.3% 4,969 68.3% 106 7,276 R+38.0
Crawford 2,220 31.0% 4,854 67.9% 80 7,154 R+36.8
Lyon 1,067 15.5% 5,707 83.2% 89 6,863 R+67.6
Shelby 1,959 28.8% 4,697 69.1% 139 6,795 R+40.3
Chickasaw 2,233 33.7% 4,308 65.0% 90 6,631 R+31.3
Cherokee 1,936 29.7% 4,496 69.0% 87 6,519 R+39.3
Appanoose 1,891 29.0% 4,512 69.2% 113 6,516 R+40.2
Guthrie 1,985 31.2% 4,271 67.0% 114 6,370 R+35.9
Wright 1,996 31.9% 4,136 66.1% 123 6,255 R+34.2
Union 2,061 33.3% 4,009 64.8% 114 6,184 R+31.5
Hancock 1,684 27.3% 4,391 71.1% 98 6,173 R+43.9
Winnebago 2,134 35.8% 3,706 62.1% 128 5,968 R+26.3
Mitchell 2,053 35.3% 3,677 63.2% 92 5,822 R+27.9
Sac 1,389 25.1% 4,061 73.4% 85 5,535 R+48.3
Louisa 1,727 32.4% 3,501 65.6% 106 5,334 R+33.3
Humboldt 1,442 27.1% 3,819 71.7% 66 5,327 R+44.6
Montgomery 1,583 29.7% 3,659 68.7% 85 5,327 R+39.0
Keokuk 1,414 26.7% 3,797 71.6% 92 5,303 R+44.9
Calhoun 1,470 28.0% 3,689 70.1% 100 5,259 R+42.2
Franklin 1,626 31.7% 3,422 66.7% 82 5,130 R+35.0
Greene 1,769 35.0% 3,223 63.7% 65 5,057 R+28.8
Palo Alto 1,519 30.6% 3,370 68.0% 69 4,958 R+37.3
Howard 1,772 35.7% 3,126 63.1% 59 4,957 R+27.3
Emmet 1,520 31.3% 3,264 67.3% 68 4,852 R+35.9
Monona 1,407 29.8% 3,248 68.7% 73 4,728 R+38.9
Clarke 1,466 31.4% 3,144 67.3% 60 4,670 R+35.9
Lucas 1,284 27.7% 3,287 71.0% 59 4,630 R+43.3
Worth 1,596 36.1% 2,738 62.0% 84 4,418 R+25.8
Adair 1,198 28.7% 2,917 69.8% 62 4,177 R+41.2
Davis 1,013 24.7% 3,032 73.9% 57 4,102 R+49.2
Monroe 1,078 26.4% 2,975 72.8% 35 4,088 R+46.4
Fremont 1,080 28.0% 2,711 70.3% 66 3,857 R+42.3
Ida 917 23.8% 2,880 74.8% 53 3,850 R+51.0
Pocahontas 933 24.4% 2,826 73.9% 63 3,822 R+49.5
Decatur 1,120 29.4% 2,615 68.7% 69 3,804 R+39.3
Van Buren 875 23.1% 2,859 75.4% 58 3,792 R+52.3
Audubon 1,071 31.3% 2,295 67.1% 54 3,420 R+35.8
Osceola 601 18.1% 2,690 80.8% 37 3,328 R+62.8
Taylor 746 23.0% 2,463 75.8% 40 3,249 R+52.8
Wayne 727 23.4% 2,338 75.2% 44 3,109 R+51.8
Ringgold 709 26.1% 1,968 72.5% 37 2,714 R+46.4
Adams 590 27.3% 1,531 70.8% 40 2,161 R+43.5

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Iowa in every presidential election we hold

YearWinnerMargin
2024 Donald Trump (R) R+13.2
2020 Donald Trump (R) R+8.2
2016 Donald Trump (R) R+9.4
2012 Barack Obama (D) D+5.8
2008 Barack Obama (D) D+9.5
2004 George W. Bush (R) R+0.7
2000 Al Gore (D) D+0.3
1996 Bill Clinton (D) D+10.3
1992 Bill Clinton (D) D+6.0
1988 Michael Dukakis (D) D+10.2
1984 Ronald Reagan (R) R+7.4
1980 Ronald Reagan (R) R+12.7
1976 Gerald Ford (R) R+1.0
1972 Richard Nixon (R) R+17.1
1968 Richard Nixon (R) R+12.2
1964 Lyndon B. Johnson (D) D+24.0
1960 Richard Nixon (R) R+13.5
1956 Dwight D. Eisenhower (R) R+18.4
1952 Dwight D. Eisenhower (R) R+28.2
1948 Harry S. Truman (D) D+2.7
1944 Thomas E. Dewey (R) R+4.5
1940 Wendell Willkie (R) R+4.4
1936 Franklin D. Roosevelt (D) D+11.7
1932 Franklin D. Roosevelt (D) D+17.7
1928 Herbert Hoover (R) R+24.2
1924 Calvin Coolidge (R) R+38.4
1920 Warren G. Harding (R) R+45.4
1916 Charles Evans Hughes (R) R+12.0
1912 Woodrow Wilson (D) D+13.3
1908 William Howard Taft (R) R+15.0
1904 Theodore Roosevelt (R) R+32.7
1900 William McKinley (R) R+18.6
1896 William McKinley (R) R+12.6
1892 Benjamin Harrison (R) R+5.3
1888 Benjamin Harrison (R) R+7.8
1884 James G. Blaine (R) R+5.2
1880 James A. Garfield (R) R+24.1
1876 Rutherford B. Hayes (R) R+20.2
1872 Ulysses S. Grant (R) R+23.1
1868 Ulysses S. Grant (R) R+23.8