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United States · Election results history · 1948 Senate · Idaho
Election 1948 Results

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1948 US Senate election in Idaho

Bert C. Miller (Democrat) beat Henry C. Dworshak (Republican) in Idaho in 1948, 50.0% to 48.5%, a margin of 1.5 points and 3,132 votes.

Idaho changed party: in 1942 it went Republican, for John Thomas.

Democrats led in 22 of the 44 counties as they stood then and Republicans in 22. The largest, Ada, cast 26,748 votes and went to the Republican by 9.1 points. The closest was Boise, where 10 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
Bert C. Miller won Democratic 107,000 50.0%
Henry C. Dworshak Republican 103,868 48.5%
All other candidates 3,320 1.6%
Total214,188

Every county

CountyDemocratRepublicanOthersTotalMargin
Ada 12,013 44.9% 14,444 54.0% 291 26,748 R+9.1
Canyon 8,223 45.1% 9,749 53.5% 251 18,223 R+8.4
Bannock 9,713 62.4% 5,678 36.5% 165 15,556 D+25.9
Twin Falls 6,031 42.5% 8,028 56.6% 116 14,175 R+14.1
Bonneville 5,014 49.9% 4,953 49.3% 73 10,040 D+0.6
Kootenai 5,197 51.9% 4,329 43.3% 481 10,007 D+8.7
Nez Perce 5,649 61.6% 3,283 35.8% 245 9,177 D+25.8
Shoshone 4,373 53.8% 3,324 40.9% 433 8,130 D+12.9
Latah 3,902 50.5% 3,668 47.5% 150 7,720 D+3.0
Bingham 3,284 50.1% 3,264 49.8% 7 6,555 D+0.3
Bonner 2,873 48.8% 2,776 47.1% 239 5,888 D+1.6
Cassia 2,114 44.7% 2,571 54.3% 47 4,732 R+9.7
Jerome 2,003 46.4% 2,276 52.7% 38 4,317 R+6.3
Idaho 2,240 54.2% 1,831 44.3% 60 4,131 D+9.9
Payette 1,597 39.5% 2,405 59.5% 41 4,043 R+20.0
Gooding 1,839 45.7% 2,155 53.6% 28 4,022 R+7.9
Franklin 1,693 43.4% 2,186 56.1% 20 3,899 R+12.6
Fremont 1,979 51.8% 1,837 48.0% 8 3,824 D+3.7
Madison 1,972 53.5% 1,702 46.2% 12 3,686 D+7.3
Jefferson 1,859 51.5% 1,726 47.9% 22 3,607 D+3.7
Minidoka 1,658 48.1% 1,718 49.8% 72 3,448 R+1.7
Washington 1,717 50.0% 1,686 49.1% 28 3,431 D+0.9
Gem 1,791 52.7% 1,563 46.0% 44 3,398 D+6.7
Bear Lake 1,589 47.6% 1,737 52.1% 9 3,335 R+4.4
Benewah 1,530 57.3% 1,088 40.7% 52 2,670 D+16.6
Elmore 1,612 64.9% 843 34.0% 28 2,483 D+31.0
Clearwater 1,551 62.7% 838 33.9% 83 2,472 D+28.8
Blaine 1,210 54.0% 1,010 45.1% 20 2,240 D+8.9
Boundary 1,009 49.2% 962 46.9% 81 2,052 D+2.3
Oneida 950 47.7% 1,040 52.2% 1 1,991 R+4.5
Owyhee 892 46.2% 1,022 52.9% 17 1,931 R+6.7
Lemhi 858 44.8% 1,028 53.7% 30 1,916 R+8.9
Valley 816 44.8% 964 52.9% 42 1,822 R+8.1
Lewis 1,225 70.8% 478 27.6% 28 1,731 D+43.2
Power 723 43.3% 946 56.6% 1 1,670 R+13.4
Lincoln 719 43.9% 910 55.6% 8 1,637 R+11.7
Teton 600 46.7% 683 53.1% 3 1,286 R+6.5
Adams 654 52.4% 581 46.5% 14 1,249 D+5.8
Custer 595 47.7% 640 51.3% 12 1,247 R+3.6
Boise 463 49.8% 453 48.8% 13 929 D+1.1
Caribou 424 45.7% 504 54.3% 928 R+8.6
Butte 396 47.5% 432 51.8% 6 834 R+4.3
Camas 281 48.9% 293 51.0% 1 575 R+2.1
Clark 169 39.0% 264 61.0% 433 R+21.9

Counties as they stood in 1948; 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