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United States · Election results history · 2008 president · Idaho
Election 2008 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.

2008 presidential election in Idaho

John McCain (Republican) beat Barack Obama (Democrat) in Idaho in 2008, 61.5% to 36.1%, a margin of 25.4 points and 166,572 votes.

Idaho voted 32.7 points more Republican than the country as a whole, where the margin was D+7.3.

The Republican hold continued from 2004, when George W. Bush won.

Republicans led in 41 of the 44 counties and Democrats in 3. The largest, Ada, cast 179,402 votes and went to the Republican by 6.2 points. The closest was Teton, 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
John McCain won Republican 403,012 61.5%
Barack Obama Democratic 236,440 36.1%
All other candidates 15,670 2.4%
Total655,122

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 82,236 45.8% 93,328 52.0% 3,838 179,402 R+6.2
Canyon 20,147 31.4% 42,752 66.5% 1,347 64,246 R+35.2
Kootenai 22,120 35.7% 38,387 62.0% 1,425 61,932 R+26.3
Bonneville 11,417 27.4% 29,334 70.3% 952 41,703 R+43.0
Bannock 14,792 42.1% 19,356 55.1% 957 35,105 R+13.0
Twin Falls 8,621 30.4% 19,032 67.1% 691 28,344 R+36.7
Bonner 7,840 40.1% 11,145 57.0% 562 19,547 R+16.9
Nez Perce 7,123 40.0% 10,357 58.1% 343 17,823 R+18.1
Latah 9,195 51.9% 7,988 45.1% 531 17,714 D+6.8
Bingham 4,424 25.8% 12,230 71.3% 501 17,155 R+45.5
Madison 1,627 12.5% 11,131 85.2% 299 13,057 R+72.8
Blaine 6,947 65.7% 3,439 32.5% 185 10,571 D+33.2
Jefferson 1,641 15.7% 8,540 81.8% 260 10,441 R+66.1
Payette 2,415 28.0% 5,988 69.5% 210 8,613 R+41.5
Elmore 2,591 30.7% 5,665 67.2% 180 8,436 R+36.4
Idaho 2,017 24.6% 5,895 71.8% 298 8,210 R+47.2
Gem 2,166 27.3% 5,585 70.3% 196 7,947 R+43.0
Cassia 1,332 17.0% 6,309 80.5% 201 7,842 R+63.5
Minidoka 1,630 23.7% 5,087 73.8% 173 6,890 R+50.2
Jerome 1,794 26.2% 4,897 71.5% 156 6,847 R+45.3
Fremont 1,065 18.1% 4,700 79.9% 115 5,880 R+61.8
Shoshone 2,521 44.5% 2,953 52.1% 192 5,666 R+7.6
Gooding 1,489 27.6% 3,765 69.8% 137 5,391 R+42.2
Valley 2,405 45.4% 2,772 52.3% 119 5,296 R+6.9
Franklin 600 11.8% 4,246 83.7% 227 5,073 R+71.9
Boundary 1,484 31.4% 3,078 65.0% 171 4,733 R+33.7
Teton 2,302 49.4% 2,263 48.6% 93 4,658 D+0.8
Washington 1,241 27.5% 3,168 70.3% 97 4,506 R+42.8
Benewah 1,407 33.8% 2,646 63.5% 111 4,164 R+29.8
Lemhi 1,061 25.8% 2,938 71.6% 106 4,105 R+45.7
Owyhee 944 23.3% 3,024 74.5% 90 4,058 R+51.3
Clearwater 1,211 31.0% 2,569 65.8% 126 3,906 R+34.8
Boise 1,240 32.9% 2,433 64.5% 100 3,773 R+31.6
Caribou 553 16.7% 2,656 80.4% 93 3,302 R+63.7
Bear Lake 502 17.1% 2,377 80.8% 64 2,943 R+63.7
Power 1,027 36.1% 1,754 61.7% 61 2,842 R+25.6
Custer 611 26.0% 1,694 72.0% 47 2,352 R+46.0
Adams 728 31.4% 1,517 65.4% 75 2,320 R+34.0
Oneida 381 17.6% 1,724 79.7% 57 2,162 R+62.1
Lincoln 545 29.1% 1,232 65.9% 93 1,870 R+36.7
Lewis 479 26.6% 1,275 70.7% 50 1,804 R+44.1
Butte 318 22.6% 1,056 74.9% 36 1,410 R+52.3
Camas 187 30.3% 422 68.3% 9 618 R+38.0
Clark 64 17.1% 305 81.3% 6 375 R+64.3

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)