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United States · Election results history · 1966 Senate · 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 US Senate election in Idaho

Len B. Jordan (Republican) beat Ralph R. Harding (Democrat) in Idaho in 1966, 55.4% to 44.6%, a margin of 10.8 points and 27,182 votes.

The Republican hold continued from 1960, when Henry C. Dworshak won.

Republicans led in 29 of the 44 counties as they stood then and Democrats in 15. The largest, Ada, cast 40,786 votes and went to the Republican by 36.8 points. The closest was Bear Lake, where 47 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.

Senate

CandidatePartyVotesShare
Len B. Jordan won Republican 139,819 55.4%
Ralph R. Harding Democratic 112,637 44.6%
Total252,456

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 12,889 31.6% 27,897 68.4% 40,786 R+36.8
Canyon 7,124 34.6% 13,486 65.4% 20,610 R+30.9
Bannock 10,502 56.1% 8,211 43.9% 18,713 D+12.2
Bonneville 6,923 38.8% 10,906 61.2% 17,829 R+22.3
Twin Falls 5,277 33.2% 10,606 66.8% 15,883 R+33.6
Kootenai 7,002 58.4% 4,989 41.6% 11,991 D+16.8
Nez Perce 7,607 71.5% 3,033 28.5% 10,640 D+43.0
Bingham 4,257 44.5% 5,315 55.5% 9,572 R+11.1
Latah 3,768 52.3% 3,440 47.7% 7,208 D+4.6
Shoshone 3,959 61.3% 2,501 38.7% 6,460 D+22.6
Bonner 3,299 52.8% 2,952 47.2% 6,251 D+5.6
Cassia 2,301 40.4% 3,394 59.6% 5,695 R+19.2
Minidoka 2,279 46.4% 2,631 53.6% 4,910 R+7.2
Payette 1,802 40.1% 2,689 59.9% 4,491 R+19.8
Idaho 2,644 59.3% 1,813 40.7% 4,457 D+18.6
Jefferson 1,649 38.1% 2,677 61.9% 4,326 R+23.8
Jerome 1,440 33.9% 2,803 66.1% 4,243 R+32.1
Gooding 1,465 37.8% 2,409 62.2% 3,874 R+24.4
Madison 1,604 41.5% 2,263 58.5% 3,867 R+17.0
Gem 1,552 42.6% 2,093 57.4% 3,645 R+14.8
Fremont 1,656 46.4% 1,911 53.6% 3,567 R+7.1
Franklin 1,527 44.5% 1,903 55.5% 3,430 R+11.0
Elmore 1,707 52.1% 1,570 47.9% 3,277 D+4.2
Washington 1,324 42.2% 1,815 57.8% 3,139 R+15.6
Clearwater 2,185 74.6% 745 25.4% 2,930 D+49.1
Bear Lake 1,419 50.8% 1,372 49.2% 2,791 D+1.7
Caribou 1,122 47.4% 1,247 52.6% 2,369 R+5.3
Lemhi 941 40.8% 1,367 59.2% 2,308 R+18.5
Benewah 1,360 60.1% 902 39.9% 2,262 D+20.2
Blaine 1,071 48.8% 1,125 51.2% 2,196 R+2.5
Owyhee 756 37.0% 1,290 63.0% 2,046 R+26.1
Boundary 1,038 53.5% 902 46.5% 1,940 D+7.0
Power 878 47.8% 957 52.2% 1,835 R+4.3
Valley 772 43.8% 990 56.2% 1,762 R+12.4
Oneida 942 57.5% 696 42.5% 1,638 D+15.0
Lewis 1,153 73.2% 422 26.8% 1,575 D+46.4
Lincoln 499 35.5% 908 64.5% 1,407 R+29.1
Butte 716 53.8% 615 46.2% 1,331 D+7.6
Adams 579 43.6% 748 56.4% 1,327 R+12.7
Custer 541 46.4% 626 53.6% 1,167 R+7.3
Teton 539 47.0% 608 53.0% 1,147 R+6.0
Boise 268 37.4% 449 62.6% 717 R+25.2
Camas 178 36.5% 310 63.5% 488 R+27.0
Clark 123 34.6% 233 65.4% 356 R+30.9

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 Senate elections we hold

YearWinnerMargin
2022 Mike Crapo (R) R+31.9
2020 Jim Risch (R) R+29.4
2016 Mike Crapo (R) R+38.4
2014 James E. Risch (R) R+30.7
2010 Mike Crapo (R) R+46.2
2008 Jim Risch (R) R+23.5
2004 Mike Crapo (R) R+99.2
2002 Larry E. Craig (R) R+32.6
1998 Mike Crapo (R) R+41.1
1996 Larry E. Craig (R) R+17.1
1992 Dirk Kempthorne (R) R+13.0
1990 Larry E. Craig (R) R+22.6
1986 Steve Symms (R) R+3.1
1984 James A. McClure (R) R+46.2
1980 Steve Symms (R) R+1.0
1978 James A. McClure (R) R+36.9
1974 Frank Church (D) D+13.9
1972 James A. McClure (R) R+6.7
1968 Frank Church (D) D+20.5
1966 Len B. Jordan (R) R+10.8
1962 Frank Church (D) D+9.5
1960 Henry C. Dworshak (R) R+4.5
1956 Frank Church (D) D+17.5
1954 Henry C. Dworshak (R) R+25.7
1950 Herman Welker (R) R+23.4
1948 Bert C. Miller (D) D+1.5
1944 Glen H. Taylor (D) D+2.3
1942 John Thomas (R) R+3.1
1938 D. Worth Clark (D) D+9.8
1936 William E. Borah (R) R+26.7
1932 James Pope (D) D+13.4
1930 William E. Borah (R) R+44.8
1926 Frank R. Gooding (R) R+20.4
1924 William E. Borah (R) R+59.4
1920 Frank R. Gooding (R) R+8.2
1918 William E. Borah (R) R+34.4
1914 James H. Brady (R) R+5.7