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United States · Election results history · 1940 president · Idaho
Election 1940 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.

1940 presidential election in Idaho

Franklin D. Roosevelt (Democrat) beat Wendell Willkie (Republican) in Idaho in 1940, 54.4% to 45.3%, a margin of 9.1 points and 21,289 votes.

Idaho voted 0.9 points more Republican than the country as a whole, where the margin was D+10.0.

The Democratic hold continued from 1936, when Franklin D. Roosevelt also won.

Democrats led in 35 of the 44 counties as they stood then and Republicans in 9. The largest, Ada, cast 25,332 votes and went to the Republican by 2.0 points. The closest was Minidoka, where 8 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
Franklin D. Roosevelt won Democratic 127,842 54.4%
Wendell Willkie Republican 106,553 45.3%
All other candidates 773 0.3%
Total235,168

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 12,381 48.9% 12,900 50.9% 51 25,332 R+2.0
Canyon 8,639 49.5% 8,756 50.2% 62 17,457 R+0.7
Twin Falls 7,286 44.6% 9,006 55.2% 34 16,326 R+10.5
Bannock 10,493 66.0% 5,414 34.0% 1 15,908 D+31.9
Kootenai 5,997 57.3% 4,331 41.4% 132 10,460 D+15.9
Shoshone 6,565 64.6% 3,518 34.6% 82 10,165 D+30.0
Bonneville 5,891 59.5% 4,005 40.4% 10 9,906 D+19.0
Nez Perce 5,963 63.4% 3,404 36.2% 41 9,408 D+27.2
Latah 4,494 52.9% 3,977 46.8% 29 8,500 D+6.1
Bingham 3,815 51.0% 3,650 48.8% 10 7,475 D+2.2
Bonner 3,834 54.6% 3,150 44.9% 34 7,018 D+9.7
Cassia 2,930 51.5% 2,749 48.3% 11 5,690 D+3.2
Idaho 2,888 52.1% 2,634 47.6% 16 5,538 D+4.6
Fremont 2,556 56.2% 1,988 43.7% 2 4,546 D+12.5
Jerome 1,881 42.7% 2,513 57.1% 7 4,401 R+14.4
Payette 1,790 40.9% 2,564 58.6% 19 4,373 R+17.7
Jefferson 2,631 60.3% 1,715 39.3% 16 4,362 D+21.0
Gooding 1,919 44.9% 2,351 55.0% 4 4,274 R+10.1
Franklin 2,158 51.1% 2,068 48.9% 4,226 D+2.1
Washington 2,296 54.6% 1,902 45.3% 5 4,203 D+9.4
Gem 2,666 64.6% 1,458 35.3% 4 4,128 D+29.3
Minidoka 1,982 49.9% 1,974 49.7% 12 3,968 D+0.2
Madison 2,218 57.5% 1,636 42.4% 1 3,855 D+15.1
Bear Lake 2,026 53.5% 1,761 46.5% 3,787 D+7.0
Clearwater 2,284 66.7% 1,123 32.8% 16 3,423 D+33.9
Benewah 1,924 59.5% 1,291 39.9% 21 3,236 D+19.6
Lemhi 1,664 54.0% 1,414 45.9% 1 3,079 D+8.1
Elmore 1,632 60.2% 1,077 39.7% 4 2,713 D+20.5
Boundary 1,393 52.1% 1,212 45.3% 69 2,674 D+6.8
Blaine 1,559 58.5% 1,104 41.4% 4 2,667 D+17.1
Oneida 1,440 55.7% 1,140 44.1% 4 2,584 D+11.6
Owyhee 1,160 52.7% 1,029 46.7% 14 2,203 D+5.9
Lewis 1,462 66.5% 729 33.2% 7 2,198 D+33.3
Valley 1,165 60.0% 759 39.1% 17 1,941 D+20.9
Lincoln 886 46.7% 1,006 53.0% 7 1,899 R+6.3
Power 931 49.7% 941 50.2% 3 1,875 R+0.5
Adams 929 54.3% 778 45.5% 3 1,710 D+8.8
Custer 894 53.9% 759 45.8% 5 1,658 D+8.1
Teton 844 55.8% 669 44.2% 1,513 D+11.6
Boise 677 58.0% 489 41.9% 1 1,167 D+16.1
Caribou 658 63.1% 384 36.8% 1 1,043 D+26.3
Butte 448 51.6% 421 48.4% 869 D+3.1
Camas 381 51.3% 361 48.7% 742 D+2.7
Clark 212 34.7% 399 65.3% 611 R+30.6

Counties as they stood in 1940; 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.

Idaho in every presidential election we hold

YearWinnerMargin
2024 Donald Trump (R) R+36.5
2020 Donald Trump (R) R+30.8
2016 Donald Trump (R) R+31.8
2012 Mitt Romney (R) R+31.7
2008 John McCain (R) R+25.4
2004 George W. Bush (R) R+38.1
2000 George W. Bush (R) R+39.5
1996 Bob Dole (R) R+18.5
1992 George H. W. Bush (R) R+13.6
1988 George H. W. Bush (R) R+26.1
1984 Ronald Reagan (R) R+46.0
1980 Ronald Reagan (R) R+41.3
1976 Gerald Ford (R) R+22.8
1972 Richard Nixon (R) R+38.2
1968 Richard Nixon (R) R+26.1
1964 Lyndon B. Johnson (D) D+1.8
1960 Richard Nixon (R) R+7.6
1956 Dwight D. Eisenhower (R) R+22.4
1952 Dwight D. Eisenhower (R) R+31.0
1948 Harry S. Truman (D) D+2.7
1944 Franklin D. Roosevelt (D) D+3.5
1940 Franklin D. Roosevelt (D) D+9.1
1936 Franklin D. Roosevelt (D) D+29.8
1932 Franklin D. Roosevelt (D) D+20.4
1928 Herbert Hoover (R) R+29.3
1924 Calvin Coolidge (R) R+30.8
1920 Warren G. Harding (R) R+31.3
1916 Woodrow Wilson (D) D+10.9
1912 Woodrow Wilson (D) D+1.1
1908 William Howard Taft (R) R+16.9
1904 Theodore Roosevelt (R) R+40.4
1900 William Jennings Bryan (D) D+3.9
1896 William Jennings Bryan (D) D+56.8
1892 James B. Weaver (other)