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United States · Election results history · 1966 Senate · Louisiana
Election 1966 Results

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1966 US Senate election in Louisiana

Allen J. Ellender (Democrat) won in Louisiana in 1966 with 100.0% of the vote and no opponent from the other main party.

The Democratic hold continued from 1960, when Allen J. Ellender also won.

Democrats led in 64 of the 64 counties as they stood then. The largest, Orleans, cast 87,267 votes and went to the Democrat by 100.0 points. The closest was Cameron, where 699 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
Allen J. Ellender won Democratic 437,695 100.0%
Total437,695

Every county

CountyDemocratRepublicanOthersTotalMargin
Orleans 87,267 100.0% 0 0.0% 87,267 D+100.0
Jefferson 42,766 100.0% 0 0.0% 42,766 D+100.0
East Baton Rouge 35,821 100.0% 0 0.0% 35,821 D+100.0
Caddo 30,215 100.0% 0 0.0% 30,215 D+100.0
Rapides 14,739 100.0% 0 0.0% 14,739 D+100.0
Ouachita 12,983 100.0% 0 0.0% 12,983 D+100.0
Lafayette 11,911 100.0% 0 0.0% 11,911 D+100.0
Calcasieu 10,852 100.0% 0 0.0% 10,852 D+100.0
Lafourche 8,874 100.0% 0 0.0% 8,874 D+100.0
Tangipahoa 8,870 100.0% 0 0.0% 8,870 D+100.0
Washington 8,069 100.0% 0 0.0% 8,069 D+100.0
Terrebonne 7,576 100.0% 0 0.0% 7,576 D+100.0
St. Tammany 7,395 100.0% 0 0.0% 7,395 D+100.0
St. Bernard 6,564 100.0% 0 0.0% 6,564 D+100.0
St. Landry 6,551 100.0% 0 0.0% 6,551 D+100.0
Iberia 5,841 100.0% 0 0.0% 5,841 D+100.0
St. Mary 5,782 100.0% 0 0.0% 5,782 D+100.0
Vermilion 5,223 100.0% 0 0.0% 5,223 D+100.0
Bossier 4,564 100.0% 0 0.0% 4,564 D+100.0
Natchitoches 4,405 100.0% 0 0.0% 4,405 D+100.0
St. Charles 4,325 100.0% 0 0.0% 4,325 D+100.0
Livingston 4,285 100.0% 0 0.0% 4,285 D+100.0
Avoyelles 4,129 100.0% 0 0.0% 4,129 D+100.0
Acadia 4,022 100.0% 0 0.0% 4,022 D+100.0
Plaquemines 3,901 100.0% 0 0.0% 3,901 D+100.0
Webster 3,885 100.0% 0 0.0% 3,885 D+100.0
Iberville 3,730 100.0% 0 0.0% 3,730 D+100.0
Ascension 3,673 100.0% 0 0.0% 3,673 D+100.0
St. Martin 3,626 100.0% 0 0.0% 3,626 D+100.0
St. James 3,616 100.0% 0 0.0% 3,616 D+100.0
St. John The Baptist 3,483 100.0% 0 0.0% 3,483 D+100.0
Evangeline 3,362 100.0% 0 0.0% 3,362 D+100.0
Vernon 3,222 100.0% 0 0.0% 3,222 D+100.0
Jefferson Davis 3,142 100.0% 0 0.0% 3,142 D+100.0
Lincoln 2,892 100.0% 0 0.0% 2,892 D+100.0
Pointe Coupee 2,789 100.0% 0 0.0% 2,789 D+100.0
Jackson 2,629 100.0% 0 0.0% 2,629 D+100.0
Morehouse 2,527 100.0% 0 0.0% 2,527 D+100.0
Beauregard 2,507 100.0% 0 0.0% 2,507 D+100.0
Assumption 2,452 100.0% 0 0.0% 2,452 D+100.0
Madison 2,389 100.0% 0 0.0% 2,389 D+100.0
Desoto 2,369 100.0% 0 0.0% 2,369 D+100.0
Allen 2,343 100.0% 0 0.0% 2,343 D+100.0
Bienville 2,337 100.0% 0 0.0% 2,337 D+100.0
East Feliciana 2,294 100.0% 0 0.0% 2,294 D+100.0
Sabine 2,289 100.0% 0 0.0% 2,289 D+100.0
Winn 2,269 100.0% 0 0.0% 2,269 D+100.0
Grant 2,218 100.0% 0 0.0% 2,218 D+100.0
Richland 2,148 100.0% 0 0.0% 2,148 D+100.0
Concordia 2,107 100.0% 0 0.0% 2,107 D+100.0
Union 2,000 100.0% 0 0.0% 2,000 D+100.0
West Baton Rouge 1,985 100.0% 0 0.0% 1,985 D+100.0
Franklin 1,891 100.0% 0 0.0% 1,891 D+100.0
La Salle 1,854 100.0% 0 0.0% 1,854 D+100.0
Claiborne 1,809 100.0% 0 0.0% 1,809 D+100.0
Caldwell 1,642 100.0% 0 0.0% 1,642 D+100.0
East Carroll 1,551 100.0% 0 0.0% 1,551 D+100.0
West Carroll 1,402 100.0% 0 0.0% 1,402 D+100.0
Catahoula 1,339 100.0% 0 0.0% 1,339 D+100.0
Red River 1,251 100.0% 0 0.0% 1,251 D+100.0
St. Helena 1,150 100.0% 0 0.0% 1,150 D+100.0
Tensas 1,027 100.0% 0 0.0% 1,027 D+100.0
West Feliciana 867 100.0% 0 0.0% 867 D+100.0
Cameron 699 100.0% 0 0.0% 699 D+100.0

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.

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