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United States · Election results history · 1948 president · Idaho
Election 1948 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.

1948 presidential election in Idaho

Harry S. Truman (Democrat) beat Thomas E. Dewey (Republican) in Idaho in 1948, 50.0% to 47.3%, a margin of 2.7 points and 5,856 votes.

Idaho voted 1.8 points more Republican than the country as a whole, where the margin was D+4.5.

The Democratic hold continued from 1944, when Franklin D. Roosevelt won.

Democrats led in 28 of the 44 counties as they stood then and Republicans in 16. The largest, Ada, cast 26,705 votes and went to the Republican by 13.9 points. The closest was Jerome, where 4 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
Harry S. Truman won Democratic 107,370 50.0%
Thomas E. Dewey Republican 101,514 47.3%
All other candidates 5,932 2.8%
Total214,816

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 11,253 42.1% 14,972 56.1% 480 26,705 R+13.9
Canyon 7,903 43.0% 9,700 52.8% 760 18,363 R+9.8
Bannock 9,679 62.2% 5,580 35.9% 301 15,560 D+26.3
Twin Falls 6,019 42.8% 7,833 55.7% 209 14,061 R+12.9
Kootenai 5,284 51.5% 4,265 41.6% 713 10,262 D+9.9
Bonneville 5,382 53.8% 4,499 45.0% 120 10,001 D+8.8
Nez Perce 5,747 61.6% 3,168 34.0% 407 9,322 D+27.7
Shoshone 4,472 54.1% 3,200 38.7% 589 8,261 D+15.4
Latah 3,810 48.3% 3,805 48.2% 274 7,889 D+0.1
Bingham 3,197 49.6% 3,162 49.0% 89 6,448 D+0.5
Bonner 2,916 49.7% 2,666 45.4% 285 5,867 D+4.3
Cassia 2,178 46.6% 2,424 51.9% 69 4,671 R+5.3
Jerome 2,124 49.3% 2,128 49.4% 53 4,305 R+0.1
Idaho 2,300 54.5% 1,790 42.4% 128 4,218 D+12.1
Payette 1,568 38.4% 2,430 59.5% 83 4,081 R+21.1
Gooding 1,844 45.9% 2,111 52.6% 60 4,015 R+6.7
Franklin 1,763 46.2% 2,028 53.2% 22 3,813 R+6.9
Fremont 2,014 52.8% 1,777 46.6% 20 3,811 D+6.2
Madison 2,024 55.5% 1,602 43.9% 21 3,647 D+11.6
Jefferson 2,017 56.5% 1,490 41.8% 61 3,568 D+14.8
Washington 1,700 48.8% 1,713 49.2% 68 3,481 R+0.4
Minidoka 1,668 48.6% 1,654 48.2% 110 3,432 D+0.4
Gem 1,724 50.3% 1,585 46.3% 117 3,426 D+4.1
Bear Lake 1,664 50.7% 1,590 48.5% 26 3,280 D+2.3
Benewah 1,590 58.2% 1,038 38.0% 103 2,731 D+20.2
Clearwater 1,571 61.6% 820 32.2% 158 2,549 D+29.5
Elmore 1,589 63.5% 854 34.1% 60 2,503 D+29.4
Blaine 1,182 54.7% 945 43.7% 35 2,162 D+11.0
Boundary 1,029 49.0% 910 43.4% 160 2,099 D+5.7
Oneida 1,008 50.9% 962 48.5% 12 1,982 D+2.3
Lemhi 864 44.6% 1,037 53.5% 37 1,938 R+8.9
Owyhee 925 47.8% 969 50.0% 43 1,937 R+2.3
Valley 828 45.0% 939 51.0% 74 1,841 R+6.0
Lewis 1,224 69.4% 487 27.6% 52 1,763 D+41.8
Power 795 47.3% 875 52.1% 11 1,681 R+4.8
Lincoln 748 46.3% 851 52.6% 18 1,617 R+6.4
Adams 647 50.8% 603 47.3% 24 1,274 D+3.5
Teton 672 52.8% 593 46.6% 7 1,272 D+6.2
Custer 625 49.7% 612 48.7% 20 1,257 D+1.0
Boise 479 51.0% 437 46.5% 24 940 D+4.5
Caribou 475 51.1% 447 48.1% 8 930 D+3.0
Butte 426 50.4% 412 48.7% 8 846 D+1.7
Camas 278 48.3% 289 50.3% 8 575 R+1.9
Clark 165 38.2% 262 60.6% 5 432 R+22.5

Counties as they stood in 1948; 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)