| Elections in Idaho |
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Some type of election in Idaho occurs annually in each of the state's cities and towns, the exact type of which is dependent on the year. Elections for federal and statewide offices occur in even-numbered years, while municipal elections occur in odd-numbered years.
Idaho voters may register in the Republican, Democratic, Libertarian or Constitution parties, or may choose to decline party preference and register as unaffiliated. Idaho allows same-day registration, as well as party affiliation, changes at both the primary and general elections.
In a 2020 study, Idaho was ranked as the 18th easiest state in terms of voting ease.[1]
| Year | Republican | Democratic | Third party(ies) | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 2024 | 605,246 | 66.87% | 274,972 | 30.38% | 24,835 | 2.74% |
| 2020 | 554,119 | 63.67% | 287,021 | 32.98% | 29,203 | 3.36% |
| 2016 | 409,055 | 59.25% | 189,765 | 27.48% | 91,613 | 13.27% |
| 2012 | 420,911 | 64.09% | 212,787 | 32.40% | 23,044 | 3.51% |
| 2008 | 403,012 | 61.21% | 236,440 | 35.91% | 19,002 | 2.89% |
| 2004 | 409,235 | 68.38% | 181,098 | 30.26% | 8,114 | 1.36% |
| 2000 | 336,937 | 67.17% | 138,637 | 27.64% | 26,047 | 5.19% |
| 1996 | 256,595 | 52.18% | 165,443 | 33.65% | 69,681 | 14.17% |
| 1992 | 202,645 | 42.03% | 137,013 | 28.42% | 142,484 | 29.55% |
| 1988 | 253,881 | 62.08% | 147,272 | 36.01% | 7,815 | 1.91% |
| 1984 | 297,523 | 72.36% | 108,510 | 26.39% | 5,111 | 1.24% |
| 1980 | 290,699 | 66.46% | 110,192 | 25.19% | 36,540 | 8.35% |
| 1976 | 204,151 | 59.88% | 126,549 | 37.12% | 10,232 | 3.00% |
| 1972 | 199,384 | 64.24% | 80,826 | 26.04% | 30,169 | 9.72% |
| 1968 | 165,369 | 56.79% | 89,273 | 30.66% | 36,541 | 12.55% |
| 1964 | 143,557 | 49.08% | 148,920 | 50.92% | 0 | 0.00% |
| 1960 | 161,597 | 53.78% | 138,853 | 46.22% | 0 | 0.00% |
| 1956 | 166,979 | 61.17% | 105,868 | 38.78% | 142 | 0.05% |
| 1952 | 180,707 | 65.41% | 95,081 | 34.42% | 466 | 0.17% |
| 1948 | 101,514 | 47.26% | 107,370 | 49.98% | 5,932 | 2.76% |
| 1944 | 100,137 | 48.07% | 107,399 | 51.55% | 785 | 0.38% |
| 1940 | 106,553 | 45.31% | 127,842 | 54.36% | 773 | 0.33% |
| 1936 | 66,256 | 33.19% | 125,683 | 62.96% | 7,678 | 3.85% |
| 1932 | 71,417 | 38.27% | 109,479 | 58.66% | 5,729 | 3.07% |
| 1928 | 97,322 | 64.22% | 52,926 | 34.93% | 1,293 | 0.85% |
| 1924 | 69,879 | 47.12% | 24,256 | 16.36% | 54,160 | 36.52% |
| 1920 | 88,975 | 65.60% | 46,579 | 34.34% | 70 | 0.05% |
| 1916 | 55,368 | 41.13% | 70,054 | 52.04% | 9,193 | 6.83% |
| 1912 | 32,810 | 31.02% | 33,921 | 32.08% | 39,023 | 36.90% |
| 1908 | 52,621 | 54.09% | 36,162 | 37.17% | 8,510 | 8.75% |
| 1904 | 47,783 | 65.84% | 18,480 | 25.46% | 6,315 | 8.70% |
| 1900 | 27,198 | 46.96% | 29,414 | 50.79% | 1,302 | 2.25% |
| 1896 | 6,314 | 21.32% | 23,135 | 78.10% | 172 | 0.58% |
| 1892 | 8,599 | 44.31% | 0 | 0.00% | 10,808 | 55.69% |
- ^ J. Pomante II, Michael; Li, Quan (15 Dec 2020). "Cost of Voting in the American States: 2020". Election Law Journal: Rules, Politics, and Policy. 19 (4): 503–509. doi:10.1089/elj.2020.0666. S2CID 225139517.
- ^ Leip, David. "Presidential General Election Results Comparison – Idaho". US Election Atlas. Retrieved January 3, 2023.