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United States · Election results history · 1928 president · Iowa
Election 1928 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.

1928 presidential election in Iowa

Herbert Hoover (Republican) beat Al Smith (Democrat) in Iowa in 1928, 61.8% to 37.6%, a margin of 24.2 points and 244,259 votes.

Iowa voted 6.8 points more Republican than the country as a whole, where the margin was R+17.4.

The Republican hold continued from 1924, when Calvin Coolidge won.

Republicans led in 93 of the 99 counties as they stood then and Democrats in 6. The largest, Polk, cast 62,015 votes and went to the Republican by 36.4 points. The closest was Audubon, where 24 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
Herbert Hoover won Republican 623,570 61.8%
Al Smith Democratic 379,311 37.6%
All other candidates 6,608 0.7%
Total1,009,489

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 19,725 31.8% 42,290 68.2% 62,015 R+36.4
Woodbury 16,831 45.0% 20,587 55.0% 37,418 R+10.0
Linn 11,715 31.5% 25,452 68.5% 37,167 R+37.0
Scott 12,942 43.3% 16,974 56.7% 29,916 R+13.5
Dubuque 19,437 66.6% 9,744 33.4% 29,181 D+33.2
Black Hawk 8,467 30.4% 19,409 69.6% 27,876 R+39.3
Pottawattamie 9,905 40.8% 14,354 59.2% 24,259 R+18.3
Clinton 8,643 41.3% 12,295 58.7% 20,938 R+17.4
Lee 7,785 40.1% 11,645 59.9% 19,430 R+19.9
Wapello 5,793 33.3% 11,586 66.7% 17,379 R+33.3
Des Moines 5,578 34.6% 10,547 65.4% 16,125 R+30.8
Webster 6,497 43.2% 8,525 56.8% 15,022 R+13.5
Cerro Gordo 4,908 33.9% 9,582 66.1% 14,490 R+32.3
Johnson 7,181 49.6% 7,288 50.4% 14,469 R+0.7
Jasper 3,857 29.7% 9,144 70.3% 13,001 R+40.7
Marshall 3,384 26.6% 9,326 73.4% 12,710 R+46.8
Muscatine 4,055 32.0% 8,604 68.0% 12,659 R+35.9
Fayette 4,061 32.8% 8,338 67.2% 12,399 R+34.5
Story 2,714 23.1% 9,035 76.9% 11,749 R+53.8
Clayton 4,231 38.4% 6,774 61.6% 11,005 R+23.1
Boone 3,049 28.8% 7,521 71.2% 10,570 R+42.3
Mahaska 3,200 30.3% 7,368 69.7% 10,568 R+39.4
Dallas 3,108 29.9% 7,294 70.1% 10,402 R+40.2
Tama 4,798 46.2% 5,589 53.8% 10,387 R+7.6
Marion 4,113 39.8% 6,225 60.2% 10,338 R+20.4
Appanoose 3,340 32.7% 6,864 67.3% 10,204 R+34.5
Carroll 6,134 60.4% 4,014 39.6% 10,148 D+20.9
Harrison 4,406 44.0% 5,605 56.0% 10,011 R+12.0
Plymouth 5,015 50.8% 4,848 49.2% 9,863 D+1.7
Page 2,478 25.7% 7,181 74.3% 9,659 R+48.7
Winneshiek 4,535 47.1% 5,084 52.9% 9,619 R+5.7
Kossuth 4,736 49.3% 4,878 50.7% 9,614 R+1.5
Sioux 2,839 30.8% 6,378 69.2% 9,217 R+38.4
Keokuk 3,772 41.6% 5,304 58.4% 9,076 R+16.9
Buchanan 3,099 34.5% 5,885 65.5% 8,984 R+31.0
Benton 3,307 36.8% 5,669 63.2% 8,976 R+26.3
Cass 2,640 30.1% 6,120 69.9% 8,760 R+39.7
Washington 2,754 31.6% 5,948 68.4% 8,702 R+36.7
Jackson 3,729 44.0% 4,740 56.0% 8,469 R+11.9
Delaware 3,043 36.1% 5,390 63.9% 8,433 R+27.8
Hardin 2,373 29.3% 5,731 70.7% 8,104 R+41.4
Union 2,651 32.8% 5,432 67.2% 8,083 R+34.4
Jones 2,976 36.9% 5,090 63.1% 8,066 R+26.2
Allamakee 3,227 40.3% 4,785 59.7% 8,012 R+19.4
Poweshiek 2,787 34.8% 5,212 65.2% 7,999 R+30.3
Crawford 4,495 56.7% 3,436 43.3% 7,931 D+13.4
Floyd 2,074 26.8% 5,675 73.2% 7,749 R+46.5
Buena Vista 2,609 33.9% 5,087 66.1% 7,696 R+32.2
Wright 2,547 33.7% 5,020 66.3% 7,567 R+32.7
Warren 2,239 29.7% 5,294 70.3% 7,533 R+40.6
Chickasaw 3,665 49.7% 3,712 50.3% 7,377 R+0.6
Cedar 2,517 34.1% 4,856 65.9% 7,373 R+31.7
O'Brien 2,397 33.1% 4,845 66.9% 7,242 R+33.8
Montgomery 2,079 28.7% 5,155 71.3% 7,234 R+42.5
Henry 2,053 28.5% 5,160 71.5% 7,213 R+43.1
Iowa 3,075 42.9% 4,091 57.1% 7,166 R+14.2
Hamilton 2,975 41.6% 4,171 58.4% 7,146 R+16.7
Jefferson 2,159 30.5% 4,919 69.5% 7,078 R+39.0
Shelby 3,604 51.0% 3,459 49.0% 7,063 D+2.1
Bremer 3,146 44.8% 3,879 55.2% 7,025 R+10.4
Guthrie 2,235 31.9% 4,772 68.1% 7,007 R+36.2
Monroe 2,819 41.0% 4,060 59.0% 6,879 R+18.0
Sac 2,414 35.1% 4,461 64.9% 6,875 R+29.8
Calhoun 2,681 39.3% 4,136 60.7% 6,817 R+21.3
Taylor 2,074 30.6% 4,700 69.4% 6,774 R+38.8
Butler 1,876 28.1% 4,789 71.9% 6,665 R+43.7
Decatur 2,675 40.4% 3,942 59.6% 6,617 R+19.1
Cherokee 2,701 40.9% 3,909 59.1% 6,610 R+18.3
Monona 2,836 43.1% 3,745 56.9% 6,581 R+13.8
Howard 3,193 48.6% 3,375 51.4% 6,568 R+2.8
Madison 2,178 33.3% 4,364 66.7% 6,542 R+33.4
Wayne 2,579 39.7% 3,911 60.3% 6,490 R+20.5
Fremont 2,822 44.0% 3,597 56.0% 6,419 R+12.1
Greene 2,007 31.8% 4,299 68.2% 6,306 R+36.3
Palo Alto 2,843 45.1% 3,463 54.9% 6,306 R+9.8
Pocahontas 2,824 45.9% 3,322 54.1% 6,146 R+8.1
Clay 2,064 34.1% 3,986 65.9% 6,050 R+31.8
Adair 1,854 30.7% 4,176 69.3% 6,030 R+38.5
Van Buren 1,944 33.2% 3,904 66.8% 5,848 R+33.5
Mitchell 2,308 39.5% 3,534 60.5% 5,842 R+21.0
Lucas 1,888 33.1% 3,811 66.9% 5,699 R+33.7
Davis 2,559 45.2% 3,097 54.8% 5,656 R+9.5
Mills 2,179 38.9% 3,429 61.1% 5,608 R+22.3
Grundy 1,620 30.6% 3,671 69.4% 5,291 R+38.8
Ringgold 1,572 30.0% 3,674 70.0% 5,246 R+40.1
Franklin 1,688 33.0% 3,424 67.0% 5,112 R+34.0
Hancock 1,933 38.3% 3,114 61.7% 5,047 R+23.4
Lyon 1,632 34.0% 3,170 66.0% 4,802 R+32.0
Louisa 1,457 30.8% 3,275 69.2% 4,732 R+38.4
Audubon 2,364 50.3% 2,340 49.7% 4,704 D+0.5
Ida 2,172 46.6% 2,486 53.4% 4,658 R+6.7
Winnebago 1,268 27.2% 3,386 72.8% 4,654 R+45.5
Emmet 1,372 29.9% 3,218 70.1% 4,590 R+40.2
Humboldt 1,679 37.3% 2,828 62.7% 4,507 R+25.5
Adams 1,479 33.3% 2,958 66.7% 4,437 R+33.3
Clarke 1,642 37.1% 2,780 62.9% 4,422 R+25.7
Dickinson 1,251 29.1% 3,045 70.9% 4,296 R+41.8
Worth 1,310 31.0% 2,921 69.0% 4,231 R+38.1
Osceola 1,567 42.9% 2,085 57.1% 3,652 R+14.2

Counties as they stood in 1928; 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