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United States · Election results history · 2020 Senate · Louisiana
Election 2020 Results

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2020 US Senate election in Louisiana

Bill Cassidy (Republican) beat Adrian Perkins (Democrat) in Louisiana in 2020, 59.3% to 19.0%, a margin of 40.3 points and 834,859 votes.

The Republican hold continued from 2014, when Bill Cassidy also won.

Republicans led in 57 of the 64 counties and Democrats in 7. The largest, East Baton Rouge, cast 203,954 votes and went to the Democrat by 3.2 points. The closest was St. Helena, where 8 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
Bill Cassidy won Republican 1,228,908 59.3%
Adrian Perkins Democratic 394,049 19.0%
Derrick Edwards Democratic 229,814 11.1%
All other candidates 218,772 10.6%
Total2,071,543

Every county

CountyDemocratRepublicanOthersTotalMargin
East Baton Rouge 102,217 50.1% 95,748 46.9% 5,989 203,954 D+3.2
Jefferson 71,199 38.3% 107,219 57.6% 7,565 185,983 R+19.4
Orleans 130,340 77.6% 30,688 18.3% 6,907 167,935 D+59.3
St. Tammany 31,599 23.1% 100,748 73.6% 4,606 136,953 R+50.5
Lafayette 33,645 30.2% 73,404 65.8% 4,456 111,505 R+35.7
Caddo 49,904 48.9% 49,233 48.2% 2,909 102,046 D+0.7
Calcasieu 21,718 27.1% 55,306 68.9% 3,243 80,267 R+41.8
Ouachita 21,519 32.2% 43,126 64.6% 2,081 66,726 R+32.4
Livingston 7,649 12.0% 54,350 85.2% 1,765 63,764 R+73.2
Ascension 17,119 28.2% 41,589 68.6% 1,919 60,627 R+40.4
Rapides 16,075 28.4% 38,717 68.3% 1,856 56,648 R+40.0
Tangipahoa 15,921 28.5% 37,283 66.8% 2,627 55,831 R+38.3
Bossier 13,765 25.9% 38,066 71.6% 1,369 53,200 R+45.7
Terrebonne 8,998 20.3% 33,646 75.7% 1,777 44,421 R+55.5
Lafourche 6,874 15.7% 35,183 80.5% 1,645 43,702 R+64.8
St. Landry 14,139 36.3% 23,347 60.0% 1,431 38,917 R+23.7
Iberia 8,952 28.7% 20,985 67.3% 1,243 31,180 R+38.6
Acadia 4,376 15.9% 22,212 80.8% 911 27,499 R+64.9
St. Charles 8,261 30.1% 18,278 66.6% 923 27,462 R+36.5
Vermilion 3,910 14.9% 21,256 81.2% 1,015 26,181 R+66.3
St. Martin 6,939 26.8% 17,943 69.4% 979 25,861 R+42.6
St. Mary 6,718 30.3% 14,509 65.3% 976 22,203 R+35.1
St. John the Baptist 11,775 58.0% 7,743 38.2% 777 20,295 D+19.9
Washington 5,039 26.7% 13,119 69.6% 700 18,858 R+42.8
Lincoln 6,117 32.8% 11,660 62.5% 879 18,656 R+29.7
Webster 5,538 31.4% 11,692 66.2% 422 17,652 R+34.9
St. Bernard 5,157 30.6% 10,893 64.6% 809 16,859 R+34.0
Vernon 2,459 14.8% 13,581 82.0% 529 16,569 R+67.1
Avoyelles 3,933 24.1% 11,731 71.9% 649 16,313 R+47.8
Natchitoches 5,725 35.8% 9,486 59.3% 774 15,985 R+23.5
Iberville 7,069 44.7% 8,102 51.2% 647 15,818 R+6.5
Beauregard 2,128 13.5% 13,149 83.5% 478 15,755 R+70.0
Evangeline 3,156 22.0% 10,683 74.3% 536 14,375 R+52.4
Jefferson Davis 2,604 18.1% 11,360 79.1% 395 14,359 R+61.0
De Soto 4,699 32.8% 9,048 63.1% 589 14,336 R+30.3
West Baton Rouge 5,328 38.9% 7,977 58.2% 406 13,711 R+19.3
St. James 5,432 45.7% 6,061 51.0% 389 11,882 R+5.3
Pointe Coupee 3,792 32.2% 7,576 64.4% 394 11,762 R+32.2
Morehouse 4,061 37.1% 6,516 59.6% 355 10,932 R+22.5
Union 2,087 19.5% 8,344 77.9% 281 10,712 R+58.4
Plaquemines 2,792 26.2% 7,415 69.6% 441 10,648 R+43.4
Assumption 3,172 29.9% 7,039 66.4% 391 10,602 R+36.5
Sabine 1,531 15.0% 8,422 82.7% 227 10,180 R+67.7
East Feliciana 3,561 35.3% 6,206 61.5% 330 10,097 R+26.2
Richland 2,497 26.5% 6,676 70.8% 251 9,424 R+44.3
Allen 1,746 18.5% 7,380 78.3% 297 9,423 R+59.8
Franklin 2,066 22.2% 6,975 74.9% 266 9,307 R+52.7
Grant 944 10.4% 7,839 86.6% 264 9,047 R+76.2
Concordia 2,599 31.5% 5,424 65.7% 229 8,252 R+34.2
Jackson 1,801 24.3% 5,398 72.9% 207 7,406 R+48.6
La Salle 525 7.7% 6,185 90.4% 135 6,845 R+82.7
Bienville 2,809 41.2% 3,840 56.4% 165 6,814 R+15.1
Claiborne 2,318 36.9% 3,827 60.9% 141 6,286 R+24.0
West Feliciana 1,915 31.5% 3,989 65.6% 180 6,084 R+34.1
Winn 1,211 20.4% 4,547 76.5% 184 5,942 R+56.1
St. Helena 2,730 47.0% 2,722 46.9% 357 5,809 D+0.1
West Carroll 555 11.5% 4,187 86.7% 89 4,831 R+75.2
Catahoula 1,057 22.9% 3,425 74.1% 140 4,622 R+51.2
Caldwell 616 13.4% 3,851 84.0% 119 4,586 R+70.5
Madison 2,215 49.9% 2,045 46.0% 181 4,441 D+3.8
Red River 1,528 38.2% 2,358 59.0% 109 3,995 R+20.8
Cameron 249 6.3% 3,554 90.3% 133 3,936 R+84.0
East Carroll 1,551 54.1% 1,188 41.4% 129 2,868 D+12.7
Tensas 1,065 44.3% 1,242 51.7% 97 2,404 R+7.4

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

Louisiana Senate elections we hold

YearWinnerMargin
2022 John Kennedy (R) R+43.7
2020 Bill Cassidy (R) R+40.3
2016 John Neely Kennedy (R) R+21.3
2014 Bill Cassidy (R) R+11.9
2010 David Vitter (R) R+18.9
2008 Mary L. Landrieu (D) D+6.4
2004 David Vitter (R) R+21.7
2002 Mary Landrieu (D) D+3.4
1998 John Breaux (D) D+32.4
1996 Mary Landrieu (D) D+0.3
1992 John Breaux (D) D+64.8
1990 J. Bennett Johnston (D) D+10.5
1986 John B. Breaux (D) D+5.6
1984 J. Bennett Johnston (D) D+76.9
1980 Russell B. Long (D) D+55.9
1978 J. Bennett Johnston (D) D+59.4
1974 Russell B. Long (D) D+100.0
1972 J. Bennett Johnston (D) D+36.1
1968 Russell B. Long (D) D+100.0
1966 Allen J. Ellender (D) D+100.0
1962 Russell B. Long (D) D+51.1
1960 Allen J. Ellender (D) D+59.5
1956 Russell B. Long (D) D+100.0
1954 Allen J. Ellender (D) D+100.0
1950 Russell B. Long (D) D+75.4
1948 Allen J. Ellender (D) D+100.0
1944 John H. Overton (D) D+100.0
1942 Allen J. Ellender (D) D+100.0
1938 John H. Overton (D) D+99.8
1936 Allen J. Ellender (D) D+100.0
1932 John H. Overton (D) D+100.0
1930 Huey Long (D) D+100.0
1926 Edwin S. Broussard (D) D+100.0
1924 Joseph Ransdell (D) D+100.0
1920 Edwin S. Broussard (D) D+100.0
1918 Joseph Ransdell (D) D+100.0