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United States · Election results history · 1964 president · Iowa
Election 1964 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.

1964 presidential election in Iowa

Lyndon B. Johnson (Democrat) beat Barry Goldwater (Republican) in Iowa in 1964, 61.9% to 37.9%, a margin of 24.0 points and 283,882 votes.

Iowa voted 1.4 points more Democratic than the country as a whole, where the margin was D+22.6.

Iowa changed party: in 1960 it went Republican, for Richard Nixon.

Democrats led in 92 of the 99 counties as they stood then and Republicans in 7. The largest, Polk, cast 111,953 votes and went to the Democrat by 33.0 points. The closest was Mills, where 39 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
Lyndon B. Johnson won Democratic 733,030 61.9%
Barry Goldwater Republican 449,148 37.9%
All other candidates 2,361 0.2%
Total1,184,539

Every county

CountyDemocratRepublicanOthersTotalMargin
Polk 74,194 66.3% 37,280 33.3% 479 111,953 D+33.0
Linn 40,106 64.7% 21,845 35.2% 78 62,029 D+29.4
Scott 31,526 61.7% 19,488 38.1% 84 51,098 D+23.6
Black Hawk 30,716 60.8% 19,744 39.1% 56 50,516 D+21.7
Woodbury 26,841 60.7% 17,347 39.2% 30 44,218 D+21.5
Dubuque 23,695 70.1% 10,104 29.9% 24 33,823 D+40.2
Pottawattamie 17,569 55.3% 14,208 44.7% 22 31,799 D+10.6
Clinton 14,267 63.3% 8,219 36.5% 47 22,533 D+26.8
Johnson 14,717 68.1% 6,860 31.7% 41 21,618 D+36.3
Cerro Gordo 13,156 62.4% 7,884 37.4% 31 21,071 D+25.0
Story 12,329 59.8% 8,188 39.7% 93 20,610 D+20.1
Des Moines 13,894 70.3% 5,830 29.5% 38 19,762 D+40.8
Webster 13,005 66.2% 6,576 33.5% 54 19,635 D+32.7
Wapello 13,971 71.5% 5,524 28.3% 51 19,546 D+43.2
Lee 12,244 65.9% 6,321 34.0% 17 18,582 D+31.9
Marshall 9,815 60.7% 6,323 39.1% 38 16,176 D+21.6
Jasper 10,216 65.7% 5,321 34.2% 24 15,561 D+31.5
Muscatine 8,020 59.1% 5,547 40.9% 10 13,577 D+18.2
Fayette 6,900 55.3% 5,567 44.6% 15 12,482 D+10.7
Sioux 4,233 34.4% 8,078 65.6% 12 12,323 R+31.2
Marion 7,911 66.8% 3,903 33.0% 28 11,842 D+33.8
Boone 7,699 67.9% 3,543 31.3% 93 11,335 D+36.7
Dallas 7,447 66.1% 3,763 33.4% 52 11,262 D+32.7
Kossuth 6,893 64.6% 3,776 35.4% 5 10,674 D+29.2
Plymouth 5,691 53.6% 4,920 46.4% 2 10,613 D+7.3
Warren 6,639 64.1% 3,679 35.5% 33 10,351 D+28.6
Carroll 7,807 76.5% 2,387 23.4% 13 10,207 D+53.1
Mahaska 6,396 62.7% 3,787 37.1% 22 10,205 D+25.6
Benton 6,614 65.6% 3,453 34.2% 17 10,084 D+31.3
Winneshiek 5,811 59.5% 3,941 40.4% 7 9,759 D+19.2
Tama 6,057 63.0% 3,543 36.9% 8 9,608 D+26.2
Clayton 5,624 58.9% 3,923 41.1% 3 9,550 D+17.8
Hardin 5,459 58.7% 3,828 41.1% 17 9,304 D+17.5
Page 4,402 47.8% 4,775 51.9% 32 9,209 R+4.1
Floyd 5,317 58.8% 3,721 41.1% 5 9,043 D+17.6
Buena Vista 5,245 58.3% 3,747 41.6% 5 8,997 D+16.6
Bremer 5,045 56.4% 3,880 43.4% 14 8,939 D+13.0
Buchanan 5,621 63.7% 3,187 36.1% 15 8,823 D+27.6
Jones 5,511 63.5% 3,154 36.4% 7 8,672 D+27.2
O'Brien 4,295 49.7% 4,336 50.2% 6 8,637 R+0.5
Poweshiek 5,213 62.6% 3,109 37.3% 12 8,334 D+25.2
Hamilton 5,195 62.3% 3,127 37.5% 10 8,332 D+24.8
Jackson 5,130 62.5% 3,066 37.4% 9 8,205 D+25.2
Cass 4,006 48.9% 4,182 51.0% 10 8,198 R+2.1
Delaware 4,623 57.3% 3,427 42.5% 15 8,065 D+14.8
Crawford 5,024 62.5% 2,999 37.3% 14 8,037 D+25.2
Washington 4,587 57.9% 3,315 41.9% 17 7,919 D+16.1
Appanoose 4,960 63.1% 2,872 36.6% 24 7,856 D+26.6
Wright 4,998 63.8% 2,831 36.1% 7 7,836 D+27.7
Harrison 4,575 58.8% 3,203 41.1% 9 7,787 D+17.6
Clay 4,631 59.8% 2,999 38.7% 119 7,749 D+21.1
Cedar 4,617 59.7% 3,106 40.2% 12 7,735 D+19.5
Cherokee 4,336 57.6% 3,180 42.3% 9 7,525 D+15.4
Henry 4,223 56.4% 3,247 43.4% 12 7,482 D+13.0
Keokuk 4,790 64.7% 2,597 35.1% 17 7,404 D+29.6
Sac 4,358 59.7% 2,937 40.2% 7 7,302 D+19.5
Allamakee 3,504 48.7% 3,691 51.3% 5 7,200 R+2.6
Chickasaw 4,545 63.3% 2,632 36.6% 5 7,182 D+26.6
Shelby 4,148 58.1% 2,928 41.0% 61 7,137 D+17.1
Iowa 4,261 60.0% 2,828 39.8% 13 7,102 D+20.2
Jefferson 4,135 59.8% 2,755 39.8% 26 6,916 D+20.0
Calhoun 4,407 64.5% 2,422 35.4% 8 6,837 D+29.0
Butler 3,370 49.3% 3,462 50.7% 6,832 R+1.3
Grundy 3,582 52.6% 3,215 47.2% 11 6,808 D+5.4
Palo Alto 4,441 66.8% 2,206 33.2% 6,647 D+33.6
Montgomery 3,489 52.9% 3,101 47.0% 11 6,601 D+5.9
Mitchell 3,868 60.7% 2,489 39.1% 16 6,373 D+21.6
Union 3,751 59.9% 2,502 39.9% 10 6,263 D+19.9
Howard 3,841 61.8% 2,360 38.0% 10 6,211 D+23.8
Monona 3,971 64.2% 2,208 35.7% 8 6,187 D+28.5
Guthrie 3,962 64.5% 2,169 35.3% 15 6,146 D+29.2
Hancock 3,857 62.9% 2,269 37.0% 7 6,133 D+25.9
Emmet 3,487 57.1% 2,611 42.8% 5 6,103 D+14.4
Pocahontas 3,988 65.7% 2,079 34.2% 5 6,072 D+31.4
Franklin 3,582 59.1% 2,452 40.5% 27 6,061 D+18.6
Winnebago 3,677 61.1% 2,331 38.7% 9 6,017 D+22.4
Greene 3,828 63.9% 2,141 35.8% 17 5,986 D+28.2
Dickinson 3,490 58.8% 2,443 41.1% 5 5,938 D+17.6
Lyon 2,747 46.3% 3,185 53.7% 3 5,935 R+7.4
Madison 3,518 60.9% 2,250 38.9% 12 5,780 D+21.9
Humboldt 3,376 60.0% 2,250 40.0% 4 5,630 D+20.0
Lucas 3,310 62.9% 1,935 36.8% 15 5,260 D+26.1
Wayne 3,062 60.5% 1,994 39.4% 6 5,062 D+21.1
Taylor 2,780 56.3% 2,162 43.7% 4,942 D+12.5
Mills 2,463 50.4% 2,424 49.6% 2 4,889 D+0.8
Audubon 3,011 61.6% 1,871 38.3% 3 4,885 D+23.3
Decatur 3,331 68.2% 1,542 31.6% 12 4,885 D+36.6
Ida 2,905 59.5% 1,977 40.5% 2 4,884 D+19.0
Adair 2,851 59.2% 1,953 40.6% 8 4,812 D+18.7
Monroe 3,186 66.5% 1,588 33.1% 17 4,791 D+33.4
Fremont 2,703 56.8% 2,044 42.9% 14 4,761 D+13.8
Worth 2,936 62.2% 1,777 37.6% 10 4,723 D+24.5
Louisa 2,624 58.6% 1,845 41.2% 12 4,481 D+17.4
Davis 2,966 67.4% 1,424 32.3% 12 4,402 D+35.0
Osceola 2,498 58.1% 1,798 41.8% 5 4,301 D+16.3
Van Buren 2,555 60.0% 1,700 39.9% 2 4,257 D+20.1
Clarke 2,659 63.1% 1,546 36.7% 7 4,212 D+26.4
Ringgold 2,260 58.9% 1,571 40.9% 9 3,840 D+17.9
Adams 1,941 59.5% 1,321 40.5% 1 3,263 D+19.0

Counties as they stood in 1964; 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