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United States · Election results history · 1984 president · Idaho
Election 1984 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.

1984 presidential election in Idaho

Ronald Reagan (Republican) beat Walter Mondale (Democrat) in Idaho in 1984, 72.4% to 26.4%, a margin of 46.0 points and 189,013 votes.

Idaho voted 27.7 points more Republican than the country as a whole, where the margin was R+18.2.

The Republican hold continued from 1980, when Ronald Reagan also won.

Republicans led in 44 of the 44 counties as they stood then. The largest, Ada, cast 82,924 votes and went to the Republican by 46.2 points. The closest was Shoshone, where 123 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
Ronald Reagan won Republican 297,523 72.4%
Walter Mondale Democratic 108,510 26.4%
All other candidates 5,111 1.2%
Total411,144

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 21,760 26.2% 60,036 72.4% 1,128 82,924 R+46.2
Canyon 7,527 23.1% 24,613 75.5% 447 32,587 R+52.4
Bonneville 4,877 16.5% 24,392 82.7% 221 29,490 R+66.2
Bannock 9,399 33.0% 18,742 65.8% 355 28,496 R+32.8
Kootenai 9,004 33.7% 17,330 64.9% 355 26,689 R+31.2
Twin Falls 4,567 21.0% 16,974 78.0% 230 21,771 R+57.0
Bingham 3,064 20.3% 11,900 78.7% 152 15,116 R+58.5
Nez Perce 5,981 41.7% 8,153 56.9% 196 14,330 R+15.2
Latah 5,571 41.3% 7,709 57.1% 220 13,500 R+15.8
Bonner 4,628 39.6% 6,889 58.9% 182 11,699 R+19.3
Cassia 1,036 13.6% 6,503 85.6% 58 7,597 R+72.0
Minidoka 1,398 18.8% 5,938 80.0% 84 7,420 R+61.2
Madison 483 6.6% 6,798 92.9% 38 7,319 R+86.3
Jefferson 743 11.3% 5,770 87.9% 50 6,563 R+76.6
Idaho 1,996 31.4% 4,219 66.5% 134 6,349 R+35.0
Shoshone 3,033 48.3% 3,156 50.2% 95 6,284 R+2.0
Jerome 1,284 20.5% 4,913 78.5% 62 6,259 R+58.0
Payette 1,410 23.0% 4,605 75.2% 106 6,121 R+52.2
Elmore 1,458 23.9% 4,595 75.3% 52 6,105 R+51.4
Blaine 1,971 34.8% 3,603 63.7% 83 5,657 R+28.8
Gem 1,607 30.0% 3,644 68.1% 99 5,350 R+38.1
Gooding 1,247 24.4% 3,819 74.6% 53 5,119 R+50.2
Fremont 818 16.9% 4,006 82.5% 29 4,853 R+65.7
Washington 1,119 26.7% 3,015 72.0% 54 4,188 R+45.3
Clearwater 1,608 41.8% 2,176 56.5% 64 3,848 R+14.8
Franklin 439 11.7% 3,261 87.1% 42 3,742 R+75.4
Lemhi 852 23.0% 2,810 75.8% 46 3,708 R+52.8
Caribou 535 14.9% 3,032 84.3% 30 3,597 R+69.4
Benewah 1,447 40.9% 2,039 57.7% 48 3,534 R+16.8
Boundary 1,158 34.0% 2,159 63.5% 85 3,402 R+29.4
Valley 945 28.8% 2,299 70.0% 42 3,286 R+41.2
Bear Lake 481 14.7% 2,760 84.5% 26 3,267 R+69.8
Power 678 22.6% 2,298 76.5% 28 3,004 R+53.9
Owyhee 574 20.8% 2,141 77.7% 40 2,755 R+56.9
Custer 461 21.5% 1,653 77.1% 30 2,144 R+55.6
Adams 540 27.6% 1,381 70.6% 35 1,956 R+43.0
Oneida 360 19.0% 1,528 80.5% 10 1,898 R+61.5
Boise 436 25.3% 1,249 72.6% 36 1,721 R+47.2
Butte 429 25.5% 1,245 73.9% 11 1,685 R+48.4
Lewis 648 38.9% 1,000 60.0% 18 1,666 R+21.1
Teton 370 22.8% 1,242 76.5% 12 1,624 R+53.7
Lincoln 386 23.9% 1,211 75.0% 18 1,615 R+51.1
Camas 123 25.1% 364 74.1% 4 491 R+49.1
Clark 59 14.2% 353 85.1% 3 415 R+70.8

Counties as they stood in 1984; 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)