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United States · Election results history · 1966 governors · Idaho
Election 1966 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.

1966 Idaho governor election

Don Samuelson (Republican) beat Cecil Andrus (Democrat) in Idaho in 1966, 41.4% to 37.1%, a margin of 4.3 points and 10,842 votes.

The Republican hold continued from 1962, when Robert E. Smylie won.

Republicans led in 31 of the 44 counties as they stood then and Democrats in 11 and other candidates in 2. The largest, Ada, cast 41,094 votes and went to the Republican by 10.3 points. The closest was Custer, where 10 votes separated the top two.

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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.

Governor

CandidatePartyVotesShare
Don Samuelson won Republican 104,586 41.4%
Cecil Andrus Democratic 93,744 37.1%
Perry Swisher Independent 30,913 12.2%
All other candidates 23,139 9.2%
Total252,382

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 13,527 32.9% 17,761 43.2% 9,806 41,094 R+10.3
Canyon 7,060 34.1% 10,094 48.7% 3,571 20,725 R+14.6
Bannock 7,443 40.2% 3,166 17.1% 7,891 18,500 Others
Bonneville 5,550 31.4% 8,115 45.8% 4,038 17,703 R+14.5
Twin Falls 5,098 32.3% 7,631 48.3% 3,064 15,793 R+16.0
Kootenai 5,093 42.4% 4,923 41.0% 1,996 12,012 D+1.4
Nez Perce 5,361 49.5% 2,165 20.0% 3,297 10,823 D+29.5
Bingham 3,434 36.7% 3,790 40.5% 2,123 9,347 R+3.8
Latah 3,555 49.6% 2,207 30.8% 1,402 7,164 D+18.8
Shoshone 3,594 54.2% 2,231 33.7% 802 6,627 D+20.6
Bonner 1,991 31.0% 4,043 62.9% 396 6,430 R+31.9
Cassia 1,894 33.4% 2,748 48.4% 1,030 5,672 R+15.1
Minidoka 2,142 42.2% 2,062 40.6% 875 5,079 D+1.6
Payette 1,575 34.6% 2,189 48.0% 794 4,558 R+13.5
Idaho 1,872 41.9% 1,710 38.3% 881 4,463 D+3.6
Jefferson 1,297 29.9% 2,401 55.4% 638 4,336 R+25.5
Jerome 1,212 28.7% 2,333 55.2% 682 4,227 R+26.5
Madison 1,593 41.4% 1,701 44.3% 550 3,844 R+2.8
Gooding 1,052 27.4% 1,973 51.4% 812 3,837 R+24.0
Gem 1,431 38.5% 1,600 43.0% 688 3,719 R+4.5
Fremont 1,392 39.4% 1,765 50.0% 375 3,532 R+10.6
Franklin 1,191 35.9% 1,875 56.4% 256 3,322 R+20.6
Elmore 1,523 47.1% 1,034 32.0% 674 3,231 D+15.1
Washington 1,034 32.4% 1,451 45.5% 707 3,192 R+13.1
Clearwater 1,833 62.2% 574 19.5% 539 2,946 D+42.7
Bear Lake 1,159 42.7% 1,188 43.8% 366 2,713 R+1.1
Caribou 946 40.8% 1,074 46.4% 297 2,317 R+5.5
Lemhi 705 30.6% 1,034 44.9% 565 2,304 R+14.3
Benewah 759 33.4% 865 38.0% 650 2,274 R+4.7
Blaine 796 35.6% 756 33.8% 686 2,238 D+1.8
Owyhee 675 32.9% 931 45.4% 443 2,049 R+12.5
Boundary 642 32.5% 1,122 56.9% 209 1,973 R+24.3
Valley 540 30.2% 659 36.8% 591 1,790 R+6.6
Power 647 36.2% 661 37.0% 477 1,785 R+0.8
Lewis 834 53.3% 432 27.6% 300 1,566 D+25.7
Oneida 621 42.0% 749 50.6% 109 1,479 R+8.7
Lincoln 382 27.2% 757 53.9% 265 1,404 R+26.7
Adams 456 34.4% 524 39.5% 347 1,327 R+5.1
Butte 657 49.8% 445 33.7% 218 1,320 D+16.1
Custer 293 24.4% 448 37.4% 458 1,199 Others
Teton 442 39.6% 588 52.7% 86 1,116 R+13.1
Boise 235 31.9% 294 39.9% 207 736 R+8.0
Camas 115 23.9% 288 59.9% 78 481 R+36.0
Clark 93 26.9% 229 66.2% 24 346 R+39.3

Counties as they stood in 1966; 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 governor elections we hold

YearWinnerMargin
2022 Brad Little (R) R+40.2
2018 Brad Little (R) R+21.6
2014 C. L. Otter (R) R+15.0
2010 Butch Otter (R) R+26.3
2006 C. L. Otter (R) R+8.6
2002 Dirk Kempthorne (R) R+14.5
1998 Dirk Kempthorne (R) R+38.6
1994 Phil Batt (R) R+8.4
1990 Cecil D. Andrus (D) D+36.4
1986 Cecil D. Andrus (D) D+0.9
1982 John V. Evans (D) D+1.3
1978 John V. Evans (D) D+19.2
1974 Cecil D. Andrus (D) D+44.5
1970 Cecil D. Andrus (D) D+4.4
1966 Don Samuelson (R) R+4.3
1962 Robert E. Smylie (R) R+9.3
1958 Robert E. Smylie (R) R+1.9
1954 Robert E. Smylie (R) R+8.5
1950 Len B. Jordan (R) R+5.1
1946 Charles A. Robins (R) R+12.7
1944 Charles C. Gossett (D) D+5.3
1942 C. A. Bottolfsen (R) R+0.3
1940 Chase A. Clark (D) D+1.0
1938 C. A. Bottolfsen (R) R+15.4
1936 Barzilla W. Clark (D) D+15.7
1934 C. Ben Ross (D) D+10.3
1932 C. Ben Ross (D) D+25.3
1930 C. Ben Ross (D) D+12.1
1928 H. C. Baldridge (R) R+16.2
1926 H. C. Baldridge (R) R+30.5
1924 Charles C. Moore (R) R+27.1
1922 Charles C. Moore (R) R+10.7
1920 D. W. Davis (R) R+26.0
1918 David W. Davis (R) R+19.9
1916 Moses Alexander (D) D+0.4
1914 Moses Alexander (D) D+6.7
1912 John M. Haines (R) R+1.0
1910 James H. Hawley (D) D+1.0
1908 James H. Brady (R) R+8.0
1906 Frank R. Gooding (R) R+12.1
1904 Frank R. Gooding (R) R+24.7
1902 John T. Morrison (R) R+9.7
1900 Frank W. Hunt (D) D+3.8
1898 Frank Steunenberg (D) D+14.1
1896 Frank Steunenberg (D) D+54.4
1894 William J. McConnell (R) R+12.8
1892 William J. McConnell (R) R+7.0
1890 George L. Shoup (R) R+12.7