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United States · Election results history · 1956 president · Iowa
Election 1956 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.

1956 presidential election in Iowa

Dwight D. Eisenhower (Republican) beat Adlai Stevenson II (Democrat) in Iowa in 1956, 59.1% to 40.7%, a margin of 18.4 points and 227,329 votes.

Iowa voted 3.0 points more Republican than the country as a whole, where the margin was R+15.4.

The Republican hold continued from 1952, when Dwight D. Eisenhower also won.

Republicans led in 98 of the 99 counties as they stood then and Democrats in 1. The largest, Polk, cast 115,491 votes and went to the Republican by 8.1 points. The closest was Decatur, where 106 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
Dwight D. Eisenhower won Republican 729,187 59.1%
Adlai Stevenson II Democratic 501,858 40.7%
All other candidates 3,519 0.3%
Total1,234,564

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 53,025 45.9% 62,392 54.0% 74 115,491 R+8.1
Linn 21,667 39.3% 33,402 60.6% 47 55,116 R+21.3
Black Hawk 20,403 41.9% 28,250 58.0% 66 48,719 R+16.1
Scott 18,969 40.3% 27,965 59.4% 170 47,104 R+19.1
Woodbury 19,997 44.0% 25,399 55.9% 49 45,445 R+11.9
Dubuque 13,174 42.2% 17,923 57.4% 150 31,247 R+15.2
Pottawattamie 12,731 41.8% 17,632 57.9% 105 30,468 R+16.1
Clinton 8,394 36.2% 14,765 63.6% 49 23,208 R+27.5
Cerro Gordo 9,362 42.9% 12,449 57.0% 30 21,841 R+14.1
Wapello 10,960 51.3% 10,401 48.6% 20 21,381 D+2.6
Webster 9,901 47.0% 11,097 52.7% 51 21,049 R+5.7
Johnson 8,767 43.7% 11,298 56.3% 11 20,076 R+12.6
Des Moines 8,781 44.0% 11,152 55.9% 25 19,958 R+11.9
Lee 8,226 41.5% 11,571 58.4% 32 19,829 R+16.9
Story 6,352 32.3% 13,264 67.5% 24 19,640 R+35.2
Jasper 7,098 43.2% 9,310 56.7% 20 16,428 R+13.5
Marshall 5,755 35.0% 10,305 62.7% 365 16,425 R+27.7
Muscatine 5,718 40.0% 8,552 59.8% 28 14,298 R+19.8
Fayette 4,935 38.4% 7,914 61.5% 17 12,866 R+23.2
Boone 5,815 46.3% 6,740 53.6% 9 12,564 R+7.4
Sioux 2,666 21.6% 9,651 78.3% 11 12,328 R+56.7
Kossuth 5,514 45.2% 6,680 54.7% 10 12,204 R+9.6
Marion 5,316 43.7% 6,830 56.1% 22 12,168 R+12.4
Dallas 5,185 43.9% 6,619 56.1% 2 11,806 R+12.1
Mahaska 3,965 35.9% 6,864 62.2% 205 11,034 R+26.3
Clayton 4,384 40.1% 6,529 59.8% 13 10,926 R+19.6
Carroll 5,085 46.6% 5,816 53.3% 12 10,913 R+6.7
Tama 4,795 44.5% 5,952 55.2% 26 10,773 R+10.7
Plymouth 3,502 32.6% 7,246 67.4% 10,748 R+34.8
Buena Vista 4,083 38.7% 6,470 61.3% 10 10,563 R+22.6
Winneshiek 4,251 40.6% 6,192 59.2% 17 10,460 R+18.6
Hardin 3,775 36.2% 6,642 63.7% 15 10,432 R+27.5
Page 3,001 28.9% 7,380 71.0% 16 10,397 R+42.1
Benton 3,946 39.4% 5,634 56.3% 426 10,006 R+16.9
Floyd 3,739 37.7% 6,172 62.2% 16 9,927 R+24.5
Hamilton 3,829 40.2% 5,667 59.6% 18 9,514 R+19.3
Wright 3,865 41.2% 5,512 58.7% 13 9,390 R+17.5
Warren 3,729 40.6% 5,430 59.2% 15 9,174 R+18.5
O'Brien 2,970 32.6% 6,138 67.3% 10 9,118 R+34.7
Appanoose 4,064 44.9% 4,980 55.0% 10 9,054 R+10.1
Buchanan 3,513 38.9% 5,512 61.0% 10 9,035 R+22.1
Jones 3,352 37.4% 5,605 62.5% 10 8,967 R+25.1
Harrison 3,709 41.5% 5,209 58.3% 17 8,935 R+16.8
Cass 2,818 31.6% 6,103 68.3% 9 8,930 R+36.8
Jackson 3,181 35.7% 5,575 62.6% 149 8,905 R+26.9
Washington 3,022 34.0% 5,844 65.8% 10 8,876 R+31.8
Bremer 2,892 32.7% 5,930 67.1% 9 8,831 R+34.4
Poweshiek 3,602 41.2% 5,145 58.8% 2 8,749 R+17.6
Henry 2,667 31.4% 5,818 68.5% 10 8,495 R+37.1
Crawford 3,749 44.8% 4,608 55.0% 17 8,374 R+10.3
Delaware 2,621 31.3% 5,732 68.5% 16 8,369 R+37.2
Keokuk 3,649 43.8% 4,680 56.1% 9 8,338 R+12.4
Cedar 2,912 35.3% 5,344 64.7% 2 8,258 R+29.5
Clay 2,970 36.3% 5,107 62.4% 113 8,190 R+26.1
Sac 3,248 40.0% 4,874 60.0% 3 8,125 R+20.0
Cherokee 3,254 40.3% 4,821 59.7% 4 8,079 R+19.4
Butler 2,289 28.8% 5,669 71.2% 3 7,961 R+42.5
Allamakee 2,622 33.5% 5,182 66.2% 20 7,824 R+32.7
Shelby 3,300 42.3% 4,425 56.8% 68 7,793 R+14.4
Iowa 2,753 35.4% 4,875 62.7% 149 7,777 R+27.3
Calhoun 2,972 38.8% 4,409 57.5% 288 7,669 R+18.7
Jefferson 2,845 37.1% 4,807 62.8% 7 7,659 R+25.6
Montgomery 2,597 34.0% 5,027 65.8% 19 7,643 R+31.8
Union 2,828 37.7% 4,666 62.2% 7 7,501 R+24.5
Chickasaw 3,275 43.7% 4,205 56.1% 15 7,495 R+12.4
Palo Alto 3,624 48.8% 3,795 51.1% 2 7,421 R+2.3
Monona 3,477 47.3% 3,854 52.5% 14 7,345 R+5.1
Guthrie 2,981 41.0% 4,283 58.9% 6 7,270 R+17.9
Greene 2,802 39.1% 4,255 59.4% 105 7,162 R+20.3
Hancock 2,803 39.4% 4,305 60.5% 6 7,114 R+21.1
Franklin 2,513 35.5% 4,563 64.4% 8 7,084 R+28.9
Grundy 1,908 27.9% 4,915 72.0% 4 6,827 R+44.0
Pocahontas 3,201 46.9% 3,606 52.9% 11 6,818 R+5.9
Mitchell 2,630 38.6% 4,175 61.3% 7 6,812 R+22.7
Howard 3,106 47.0% 3,491 52.9% 8 6,605 R+5.8
Emmet 2,386 36.2% 4,193 63.7% 5 6,584 R+27.4
Madison 2,652 40.5% 3,883 59.3% 9 6,544 R+18.8
Humboldt 2,756 42.4% 3,747 57.6% 4 6,507 R+15.2
Winnebago 2,521 39.1% 3,926 60.8% 6 6,453 R+21.8
Dickinson 2,498 40.6% 3,641 59.1% 18 6,157 R+18.6
Lyon 1,790 29.1% 4,356 70.8% 4 6,150 R+41.7
Taylor 2,436 40.7% 3,533 59.1% 9 5,978 R+18.4
Wayne 2,553 43.3% 3,340 56.6% 4 5,897 R+13.3
Lucas 2,431 41.7% 3,397 58.2% 4 5,832 R+16.6
Adair 2,362 40.8% 3,426 59.2% 3 5,791 R+18.4
Decatur 2,806 49.0% 2,912 50.9% 7 5,725 R+1.9
Audubon 2,585 45.8% 3,057 54.2% 2 5,644 R+8.4
Monroe 2,616 46.6% 2,984 53.2% 12 5,612 R+6.6
Fremont 2,254 40.9% 3,241 58.8% 16 5,511 R+17.9
Mills 1,897 34.8% 3,539 64.9% 18 5,454 R+30.1
Ida 2,083 39.2% 3,226 60.8% 1 5,310 R+21.5
Worth 2,465 47.7% 2,700 52.3% 2 5,167 R+4.5
Davis 2,458 47.9% 2,661 51.9% 10 5,129 R+4.0
Van Buren 1,833 36.2% 3,233 63.8% 2 5,068 R+27.6
Louisa 1,858 36.8% 3,184 63.1% 6 5,048 R+26.3
Osceola 1,779 37.3% 2,986 62.6% 7 4,772 R+25.3
Ringgold 1,775 39.5% 2,713 60.4% 2 4,490 R+20.9
Clarke 1,929 43.9% 2,462 56.0% 6 4,397 R+12.1
Adams 1,756 43.7% 2,248 55.9% 16 4,020 R+12.2

Counties as they stood in 1956; some have since been split, merged or renamed. 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