Idaho — 1984 presidential election
Recent presidential results
Akashicstate1984 presidential electionIdaho · PresidentReaganR+46.0
How it voted
Share of the 1984 vote
| Ronald Reagan ✓Republican | 72.4% | 297,523 |
|---|---|---|
| Walter MondaleDemocratic | 26.4% | 108,510 |
| OtherAll other candidates | 1.2% | 5,111 |
1984presidential margin
D+60R+60
44 counties, each filled by 1984 D-vs-R margin. Hover any county for its result.
Idaho cast 4 electoral votes this cycle.
County-level results (44 counties) — table
| County | Winner | Margin |
|---|---|---|
| Ada County, ID | Republican | R+46.2 |
| Adams County, ID | Republican | R+43.0 |
| Bannock County, ID | Republican | R+32.8 |
| Bear Lake County, ID | Republican | R+69.8 |
| Benewah County, ID | Republican | R+16.8 |
| Bingham County, ID | Republican | R+58.5 |
| Blaine County, ID | Republican | R+28.8 |
| Boise County, ID | Republican | R+47.2 |
| Bonner County, ID | Republican | R+19.3 |
| Bonneville County, ID | Republican | R+66.2 |
| Boundary County, ID | Republican | R+29.4 |
| Butte County, ID | Republican | R+48.4 |
| Camas County, ID | Republican | R+49.1 |
| Canyon County, ID | Republican | R+52.4 |
| Caribou County, ID | Republican | R+69.4 |
| Cassia County, ID | Republican | R+72.0 |
| Clark County, ID | Republican | R+70.8 |
| Clearwater County, ID | Republican | R+14.8 |
| Custer County, ID | Republican | R+55.6 |
| Elmore County, ID | Republican | R+51.4 |
| Franklin County, ID | Republican | R+75.4 |
| Fremont County, ID | Republican | R+65.7 |
| Gem County, ID | Republican | R+38.1 |
| Gooding County, ID | Republican | R+50.2 |
| Idaho County, ID | Republican | R+35.0 |
| Jefferson County, ID | Republican | R+76.6 |
| Jerome County, ID | Republican | R+58.0 |
| Kootenai County, ID | Republican | R+31.2 |
| Latah County, ID | Republican | R+15.8 |
| Lemhi County, ID | Republican | R+52.8 |
| Lewis County, ID | Republican | R+21.1 |
| Lincoln County, ID | Republican | R+51.1 |
| Madison County, ID | Republican | R+86.3 |
| Minidoka County, ID | Republican | R+61.2 |
| Nez Perce County, ID | Republican | R+15.2 |
| Oneida County, ID | Republican | R+61.5 |
| Owyhee County, ID | Republican | R+56.9 |
| Payette County, ID | Republican | R+52.2 |
| Power County, ID | Republican | R+53.9 |
| Shoshone County, ID | Republican | R+2.0 |
| Teton County, ID | Republican | R+53.7 |
| Twin Falls County, ID | Republican | R+57.0 |
| Valley County, ID | Republican | R+41.2 |
| Washington County, ID | Republican | R+45.3 |
Idaho results by county
44 counties. Third-party and independent votes are reported by the county source as one combined figure; every named candidate is listed in the complete result below.
| Led by | |||||
|---|---|---|---|---|---|
| Ada County | Reagan, Ronald+38,276 | 60,03672.4% | 21,76026.2% | 1,1281.4% | 82,924 |
| Adams County | Reagan, Ronald+841 | 1,38170.6% | 54027.6% | 351.8% | 1,956 |
| Bannock County | Reagan, Ronald+9,343 | 18,74265.8% | 9,39933.0% | 3551.2% | 28,496 |
| Bear Lake County | Reagan, Ronald+2,279 | 2,76084.5% | 48114.7% | 260.8% | 3,267 |
| Benewah County | Reagan, Ronald+592 | 2,03957.7% | 1,44740.9% | 481.4% | 3,534 |
| Bingham County | Reagan, Ronald+8,836 | 11,90078.7% | 3,06420.3% | 1521.0% | 15,116 |
| Blaine County | Reagan, Ronald+1,632 | 3,60363.7% | 1,97134.8% | 831.5% | 5,657 |
| Boise County | Reagan, Ronald+813 | 1,24972.6% | 43625.3% | 362.1% | 1,721 |
| Bonner County | Reagan, Ronald+2,261 | 6,88958.9% | 4,62839.6% | 1821.6% | 11,699 |
| Bonneville County | Reagan, Ronald+19,515 | 24,39282.7% | 4,87716.5% | 2210.7% | 29,490 |
| Boundary County | Reagan, Ronald+1,001 | 2,15963.5% | 1,15834.0% | 852.5% | 3,402 |
| Butte County | Reagan, Ronald+816 | 1,24573.9% | 42925.5% | 110.7% | 1,685 |
| Camas County | Reagan, Ronald+241 | 36474.1% | 12325.1% | 40.8% | 491 |
| Canyon County | Reagan, Ronald+17,086 | 24,61375.5% | 7,52723.1% | 4471.4% | 32,587 |
| Caribou County | Reagan, Ronald+2,497 | 3,03284.3% | 53514.9% | 300.8% | 3,597 |
| Cassia County | Reagan, Ronald+5,467 | 6,50385.6% | 1,03613.6% | 580.8% | 7,597 |
| Clark County | Reagan, Ronald+294 | 35385.1% | 5914.2% | 30.7% | 415 |
| Clearwater County | Reagan, Ronald+568 | 2,17656.5% | 1,60841.8% | 641.7% | 3,848 |
| Custer County | Reagan, Ronald+1,192 | 1,65377.1% | 46121.5% | 301.4% | 2,144 |
| Elmore County | Reagan, Ronald+3,137 | 4,59575.3% | 1,45823.9% | 520.9% | 6,105 |
| Franklin County | Reagan, Ronald+2,822 | 3,26187.1% | 43911.7% | 421.1% | 3,742 |
| Fremont County | Reagan, Ronald+3,188 | 4,00682.5% | 81816.9% | 290.6% | 4,853 |
| Gem County | Reagan, Ronald+2,037 | 3,64468.1% | 1,60730.0% | 991.9% | 5,350 |
| Gooding County | Reagan, Ronald+2,572 | 3,81974.6% | 1,24724.4% | 531.0% | 5,119 |
| Idaho County | Reagan, Ronald+2,223 | 4,21966.5% | 1,99631.4% | 1342.1% | 6,349 |
| Jefferson County | Reagan, Ronald+5,027 | 5,77087.9% | 74311.3% | 500.8% | 6,563 |
| Jerome County | Reagan, Ronald+3,629 | 4,91378.5% | 1,28420.5% | 621.0% | 6,259 |
| Kootenai County | Reagan, Ronald+8,326 | 17,33064.9% | 9,00433.7% | 3551.3% | 26,689 |
| Latah County | Reagan, Ronald+2,138 | 7,70957.1% | 5,57141.3% | 2201.6% | 13,500 |
| Lemhi County | Reagan, Ronald+1,958 | 2,81075.8% | 85223.0% | 461.2% | 3,708 |
| Lewis County | Reagan, Ronald+352 | 1,00060.0% | 64838.9% | 181.1% | 1,666 |
| Lincoln County | Reagan, Ronald+825 | 1,21175.0% | 38623.9% | 181.1% | 1,615 |
| Madison County | Reagan, Ronald+6,315 | 6,79892.9% | 4836.6% | 380.5% | 7,319 |
| Minidoka County | Reagan, Ronald+4,540 | 5,93880.0% | 1,39818.8% | 841.1% | 7,420 |
| Nez Perce County | Reagan, Ronald+2,172 | 8,15356.9% | 5,98141.7% | 1961.4% | 14,330 |
| Oneida County | Reagan, Ronald+1,168 | 1,52880.5% | 36019.0% | 100.5% | 1,898 |
| Owyhee County | Reagan, Ronald+1,567 | 2,14177.7% | 57420.8% | 401.5% | 2,755 |
| Payette County | Reagan, Ronald+3,195 | 4,60575.2% | 1,41023.0% | 1061.7% | 6,121 |
| Power County | Reagan, Ronald+1,620 | 2,29876.5% | 67822.6% | 280.9% | 3,004 |
| Shoshone County | Reagan, Ronald+123 | 3,15650.2% | 3,03348.3% | 951.5% | 6,284 |
| Teton County | Reagan, Ronald+872 | 1,24276.5% | 37022.8% | 120.7% | 1,624 |
| Twin Falls County | Reagan, Ronald+12,407 | 16,97478.0% | 4,56721.0% | 2301.1% | 21,771 |
| Valley County | Reagan, Ronald+1,354 | 2,29970.0% | 94528.8% | 421.3% | 3,286 |
| Washington County | Reagan, Ronald+1,896 | 3,01572.0% | 1,11926.7% | 541.3% | 4,188 |
complete certified result
Idaho candidate results
Top three shown first · expand for every reported candidate and write-in category
Source: MIT Election Data + Science Lab — U.S. President 1976–2024 state candidate returns
Nominees: Walter Mondale (D) · Ronald Reagan (R)
Idaho's presidential margins
1892–2024, the 1984 contest in context
| Year | Margin (D minus R) |
|---|---|
| 1892 | −44.2% |
| 1896 | +56.8% |
| 1900 | +3.8% |
| 1904 | −40.4% |
| 1908 | −16.9% |
| 1912 | +1.1% |
| 1916 | +10.9% |
| 1920 | −31.3% |
| 1924 | −30.8% |
| 1928 | −29.3% |
| 1932 | +20.4% |
| 1936 | +29.8% |
| 1940 | +9.1% |
| 1944 | +3.5% |
| 1948 | +2.7% |
| 1952 | −31.0% |
| 1956 | −22.4% |
| 1960 | −7.6% |
| 1964 | +1.8% |
| 1968 | −26.1% |
| 1972 | −38.2% |
| 1976 | −22.8% |
| 1980 | −41.3% |
| 1984 | −46.0% |
| 1988 | −26.1% |
| 1992 | −13.6% |
| 1996 | −18.5% |
| 2000 | −39.5% |
| 2004 | −38.1% |
| 2008 | −25.4% |
| 2012 | −31.9% |
| 2016 | −31.8% |
| 2020 | −30.8% |
| 2024 | −36.5% |
Same ballot, 1984ID
Source. MIT Election Data + Science Lab — 1984 presidential returns · official county-level results. Real returns — nothing estimated.