See main article: 1900 United States presidential election.
| Election Name: | 1900 United States presidential election in Idaho |
| Country: | Idaho |
| Flag Year: | 1861 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1896 United States presidential election in Idaho |
| Previous Year: | 1896 |
| Next Election: | 1904 United States presidential election in Idaho |
| Next Year: | 1904 |
| Election Date: | November 6, 1900 |
| Image1: | WilliamJBryan1902 3x4.jpg |
| Nominee1: | William Jennings Bryan |
| Party1: | Democratic Party (United States) |
| Home State1: | Nebraska |
| Running Mate1: | Adlai Stevenson I |
| Electoral Vote1: | 3 |
| Popular Vote1: | 29,414 |
| Percentage1: | 50.79% |
| Nominee2: | William McKinley |
| Party2: | Republican Party (United States) |
| Home State2: | Ohio |
| Running Mate2: | Theodore Roosevelt |
| Electoral Vote2: | 0 |
| Popular Vote2: | 27,198 |
| Percentage2: | 46.96% |
| Map Size: | 225px |
| President | |
| Before Election: | William McKinley |
| Before Party: | Republican Party (United States) |
| After Election: | William McKinley |
| After Party: | Republican Party (United States) |
The 1900 United States presidential election in Idaho took place on November 6, 1900. All contemporary 45 states were part of the 1900 United States presidential election. State voters chose three electors to the Electoral College, which selected the president and vice president.
Idaho was won by the Democratic nominees, William Jennings Bryan of Nebraska and his running mate Adlai Stevenson I of Illinois. Bryan and Stevenson defeated the Republican nominees, incumbent president William McKinley of Ohio and his running mate Theodore Roosevelt of New York. Bryan won the state by a narrow margin of 3.83%.
Bryan had previously defeated McKinley in Idaho four years earlier. He would later lose the state to William Howard Taft in 1908. As of the 2020 election, this is the last election in which the Republican candidate won the presidency without Idaho. This is one of two elections where the Republican candidate won without the state, the other being in 1896, as well as the only time a Republican was elected twice without ever carrying the state.
| 1900 United States presidential election in Idaho[1] | ||||||
|---|---|---|---|---|---|---|
| Party | Candidate | Votes | Percentage | Electoral votes | ||
| Democratic | William Jennings Bryan | 29,414 | 50.79% | 3 | ||
| Republican | William McKinley (inc.) | 27,198 | 46.96% | 0 | ||
| Prohibition | John G. Woolley | 857 | 1.48% | 0 | ||
| Populist | Wharton Barker | 251 | 0.02% | 0 | ||
| Totals | 57,914 | 100.00% | 3 | |||
| Voter turnout | — | |||||
| County | William Jennings Bryan Democratic | William McKinley Republican | John Granville Woolley[2] Prohibition | Wharton Barker Populist | Margin | Total votes cast[3] | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | % | % | % | % | |||||||||||||||||||
| Ada | 2,072 | 42.02% | 2,706 | 54.88% | 133 | 2.70% | 20 | 0.41% | -634 | -12.86% | 4,931 | ||||||||||||
| Bannock | 1,581 | 47.98% | 1,684 | 51.11% | 12 | 0.36% | 18 | 0.55% | -103 | -3.13% | 3,295 | ||||||||||||
| Bear Lake | 1,077 | 49.72% | 1,061 | 48.98% | 14 | 0.65% | 14 | 0.65% | 16 | 0.74% | 2,166 | ||||||||||||
| Bingham | 1,613 | 51.93% | 1,457 | 46.91% | 25 | 0.80% | 11 | 0.35% | 156 | 5.02% | 3,106 | ||||||||||||
| Blaine | 1,345 | 66.55% | 634 | 31.37% | 6 | 0.30% | 36 | 1.78% | 711 | 35.18% | 2,021 | ||||||||||||
| Boise | 852 | 54.20% | 695 | 44.21% | 10 | 0.64% | 15 | 0.95% | 157 | 9.99% | 1,572 | ||||||||||||
| Canyon | 1,314 | 45.93% | 1,350 | 47.19% | 156 | 5.45% | 41 | 1.43% | -36 | -1.26% | 2,861 | ||||||||||||
| Cassia | 624 | 47.56% | 674 | 51.37% | 5 | 0.38% | 9 | 0.69% | -50 | -3.81% | 1,312 | ||||||||||||
| Custer | 590 | 68.76% | 262 | 30.54% | 4 | 0.47% | 2 | 0.23% | 328 | 38.23% | 858 | ||||||||||||
| Elmore | 565 | 58.98% | 393 | 41.02% | 0 | 0.00% | 0 | 0.00% | 172 | 17.95% | 958 | ||||||||||||
| Fremont | 2,153 | 49.17% | 2,174 | 49.65% | 12 | 0.27% | 40 | 0.91% | -21 | -0.48% | 4,379 | ||||||||||||
| Idaho | 1,884 | 54.00% | 1,527 | 43.77% | 29 | 0.83% | 49 | 1.40% | 357 | 10.23% | 3,489 | ||||||||||||
| Kootenai | 1,871 | 54.76% | 1,472 | 43.08% | 40 | 1.17% | 34 | 1.00% | 399 | 11.68% | 3,417 | ||||||||||||
| Latah | 2,004 | 47.30% | 2,013 | 47.51% | 168 | 3.97% | 52 | 1.23% | -9 | -0.21% | 4,237 | ||||||||||||
| Lemhi | 897 | 61.90% | 529 | 36.51% | 9 | 0.62% | 14 | 0.97% | 368 | 25.40% | 1,449 | ||||||||||||
| Lincoln | 355 | 47.97% | 375 | 50.68% | 7 | 0.95% | 3 | 0.41% | -20 | -2.70% | 740 | ||||||||||||
| Nez Perce | 2,168 | 47.48% | 2,184 | 47.83% | 169 | 3.70% | 45 | 0.99% | -16 | -0.35% | 4,566 | ||||||||||||
| Oneida | 1,222 | 39.25% | 1,891 | 60.75% | 0 | 0.00% | 0 | 0.00% | -669 | -21.49% | 3,113 | ||||||||||||
| Owyhee | 884 | 59.65% | 584 | 39.41% | 7 | 0.47% | 7 | 0.47% | 300 | 20.24% | 1,482 | ||||||||||||
| Shoshone | 2,994 | 55.37% | 2,378 | 43.98% | 20 | 0.37% | 15 | 0.28% | 616 | 11.39% | 5,407 | ||||||||||||
| Washington | 1,349 | 51.45% | 1,194 | 45.54% | 31 | 1.18% | 48 | 1.83% | 155 | 5.91% | 2,622 | ||||||||||||
| Totals | 29,414 | 50.73% | 27,237 | 46.98% | 857 | 1.48% | 473 | 0.82% | 2,177 | 3.75% | 57,981 | ||||||||||||