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United States · Election results history · 2020 Senate · Colorado
Election 2020 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.

2020 US Senate election in Colorado

John W Hickenlooper (Democrat) beat Cory Gardner (Republican) in Colorado in 2020, 53.5% to 44.2%, a margin of 9.3 points and 301,622 votes.

Colorado changed party: in 2014 it went Republican, for Cory Gardner.

Republicans led in 41 of the 64 counties and Democrats in 23. The largest, Denver, cast 393,102 votes and went to the Democrat by 57.3 points. The closest was Garfield, where 28 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
John W Hickenlooper won Democratic 1,731,114 53.5%
Cory Gardner Republican 1,429,492 44.2%
All other candidates 75,184 2.3%
Total3,235,790

Every county

CountyDemocratRepublicanOthersTotalMargin
Denver 305,602 77.7% 80,163 20.4% 7,337 393,102 D+57.3
Jefferson 210,619 55.9% 158,276 42.0% 8,080 376,975 D+13.9
El Paso 152,126 40.4% 212,057 56.3% 12,718 376,901 R+15.9
Arapahoe 204,054 58.5% 136,713 39.2% 7,888 348,655 D+19.3
Adams 130,409 55.3% 98,341 41.7% 6,964 235,714 D+13.6
Douglas 97,553 42.1% 130,045 56.2% 3,967 231,565 R+14.0
Larimer 116,419 53.9% 94,585 43.8% 4,929 215,933 D+10.1
Boulder 154,552 75.2% 47,321 23.0% 3,663 205,536 D+52.2
Weld 63,647 38.2% 99,424 59.6% 3,613 166,684 R+21.5
Mesa 29,478 33.0% 57,236 64.2% 2,488 89,202 R+31.1
Pueblo 42,791 48.9% 42,098 48.1% 2,563 87,452 D+0.8
Broomfield 27,447 59.4% 17,855 38.7% 894 46,196 D+20.8
La Plata 19,873 56.1% 14,776 41.7% 805 35,454 D+14.4
Garfield 14,999 48.7% 15,027 48.8% 761 30,787 R+0.1
Eagle 17,902 62.3% 10,350 36.0% 496 28,748 D+26.3
Fremont 7,201 28.4% 17,450 68.8% 713 25,364 R+40.4
Montrose 7,321 29.5% 16,978 68.3% 557 24,856 R+38.9
Delta 5,764 29.9% 13,118 68.0% 423 19,305 R+38.1
Elbert 4,257 22.5% 14,340 75.6% 361 18,958 R+53.2
Summit 12,175 66.1% 5,817 31.6% 415 18,407 D+34.5
Routt 10,284 61.1% 6,256 37.2% 286 16,826 D+23.9
Teller 5,039 30.1% 11,307 67.4% 419 16,765 R+37.4
Montezuma 5,538 36.4% 9,273 61.0% 386 15,197 R+24.6
Chaffee 6,948 51.2% 6,344 46.7% 286 13,578 D+4.4
Morgan 3,787 27.9% 9,544 70.3% 240 13,571 R+42.4
Park 4,800 39.2% 7,100 58.0% 346 12,246 R+18.8
Pitkin 8,761 73.9% 2,935 24.7% 164 11,860 D+49.1
Gunnison 6,922 62.1% 3,978 35.7% 242 11,142 D+26.4
Logan 2,117 20.2% 8,167 77.9% 197 10,481 R+57.7
Grand 4,579 46.4% 5,075 51.4% 224 9,878 R+5.0
Otero 3,428 36.6% 5,731 61.2% 208 9,367 R+24.6
Archuleta 3,591 39.8% 5,225 57.9% 204 9,020 R+18.1
Las Animas 3,509 44.3% 4,217 53.2% 200 7,926 R+8.9
Alamosa 3,734 48.4% 3,800 49.3% 173 7,707 R+0.9
Moffat 1,120 16.4% 5,544 81.4% 146 6,810 R+65.0
Clear Creek 3,494 53.9% 2,835 43.8% 148 6,477 D+10.2
Rio Grande 2,502 39.8% 3,635 57.9% 142 6,279 R+18.0
Prowers 1,435 26.1% 3,966 72.1% 99 5,500 R+46.0
San Miguel 3,808 74.4% 1,227 24.0% 86 5,121 D+50.4
Yuma 652 13.1% 4,273 85.9% 52 4,977 R+72.8
Huerfano 2,077 47.5% 2,160 49.4% 134 4,371 R+1.9
Conejos 1,975 46.3% 2,243 52.5% 51 4,269 R+6.3
Gilpin 2,183 52.3% 1,867 44.7% 125 4,175 D+7.6
Ouray 2,291 57.4% 1,622 40.7% 76 3,989 D+16.8
Lake 2,297 58.1% 1,511 38.2% 146 3,954 D+19.9
Kit Carson 628 16.5% 3,138 82.3% 49 3,815 R+65.8
Rio Blanco 529 14.5% 3,065 83.9% 61 3,655 R+69.4
Custer 1,059 29.5% 2,456 68.3% 79 3,594 R+38.9
Saguache 1,887 55.8% 1,405 41.6% 87 3,379 D+14.3
Washington 346 11.5% 2,617 87.3% 33 2,996 R+75.8
Lincoln 434 16.5% 2,141 81.2% 61 2,636 R+64.8
Phillips 463 18.7% 1,980 80.1% 28 2,471 R+61.4
Bent 702 31.1% 1,488 66.0% 66 2,256 R+34.8
Baca 329 15.0% 1,816 82.7% 51 2,196 R+67.7
Costilla 1,313 62.9% 713 34.2% 61 2,087 D+28.7
Crowley 456 26.2% 1,230 70.6% 55 1,741 R+44.5
Sedgwick 320 22.1% 1,103 76.2% 24 1,447 R+54.1
Dolores 338 23.7% 1,064 74.5% 26 1,428 R+50.8
Cheyenne 119 10.6% 995 88.4% 11 1,125 R+77.9
Kiowa 93 10.4% 783 88.0% 14 890 R+77.5
Jackson 164 18.9% 684 78.9% 19 867 R+60.0
Mineral 302 39.9% 437 57.7% 18 757 R+17.8
Hinsdale 244 39.4% 365 58.9% 11 620 R+19.5
San Juan 328 59.6% 207 37.6% 15 550 D+22.0

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Colorado Senate elections we hold

YearWinnerMargin
2022 Michael Bennet (D) D+14.6
2020 John W Hickenlooper (D) D+9.3
2016 Michael F. Bennet (D) D+5.7
2014 Cory Gardner (R) R+1.9
2010 Michael F. Bennet (D) D+1.6
2008 Mark Udall (D) D+10.3
2004 Ken Salazar (D) D+4.8
2002 Wayne Allard (R) R+4.9
1998 Ben Nighthorse Campbell (R) R+27.5
1996 Wayne Allard (R) R+5.7
1992 Ben Nighthorse Campbell (D) D+9.1
1990 Hank Brown (R) R+14.0
1986 Timothy E. Wirth (D) D+1.6
1984 William L. Armstrong (R) R+29.6
1980 Gary Hart (D) D+1.6
1978 William L. Armstrong (R) R+18.4
1974 Gary Hart (D) D+17.7
1972 Floyd K. Haskell (D) D+1.0
1968 Peter H. Dominick (R) R+17.1
1966 Gordon Allott (R) R+16.1
1962 Peter H. Dominick (R) R+8.0
1960 Gordon Allott (R) R+7.5
1956 John A. Carroll (D) D+0.4
1954 Gordon Allott (R) R+2.6
1950 Eugene D. Millikin (R) R+6.5
1948 Edwin C. Johnson (D) D+34.4
1944 Eugene Millikin (R) R+12.7
1942 Edwin C. Johnson (D) D+1.0
1938 Alva B. Adams (D) D+18.1
1936 Edwin C. Johnson (D) D+28.2
1932 Alva B. Adams (D) D+6.4
1930 Edward P. Costigan (D) D+13.2
1926 Charles W. Waterman (R) R+3.9
1924 Lawrence C. Phipps (R) R+6.3
1920 Samuel D. Nicholson (R) R+15.2
1918 Lawrence C. Phipps (R) R+1.6
1914 Charles S. Thomas (D) D+1.3