99chambers

Louisiana State Senate seat · lines in effect since 2022

Louisiana Senate District 20

A district of about 109,000 people, 18% of adults with a bachelor's degree. It votes R+63.9 relative to the nation for president.

Mike Fési (R) · since Oct 12, 2019Next election Nov 2, 2027

2023 election

Oct 14, 2023
  1. Mike Fési (R) · won87.6%
  2. Dave Carskadon (R)12.4%

Full results →

Source: Louisiana Secretary of StateUpdated Sep 30, 2026, 1:09 PM ET

Where it sits among all 38 seats

Every Louisiana State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+63.936th most
Democratic
Most DemocraticMost Republican20th seat · the majority lineDistrict 20

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every election for this seat

21 races since 1968; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.

YearWinnerRunner-upWon by
Lines first used in 2022
2023Mike Fési (R)Dave Carskadon (R)75.2
Lines first used in 2012
2019Mike Fési (R)Damon J. Baldone (R)36.4
2015Norbert N. Chabert (R)Mike Fési (R)8.5
Lines first used in 2002
2011Norbert N. Chabert (R)Flip—Unopposed
2007Reggie P. Dupre Jr. (D)—Unopposed
2003Reggie P. Dupre Jr. (D)Nathan A. Trosclair (D)66.5
Lines first used in 1992
2001 runoffReggie P. Dupre Jr. (D)Chris Bollinger (R)4.5
1999Michael Robichaux (D)Chris Bollinger (R)12.7
1995 runoffMichael Robichaux (D)Robert Bergeron (D)15.6
1995No winner recordedRobert Bergeron (D)—
Lines first used in 1982
1991 runoffMarty J. Chabert (D)Paul E. Brown (R)23.3
1991No winner recordedMarty J. Chabert (D)—
1987 runoffLeonard Chabert (D)Glynn F. Voisin (D)3.0
1987No winner recordedLeonard Chabert (D)—
1983 runoffLeonard Chabert (D)Glynn F. Voisin (D)10.4
1983No winner recordedLeonard Chabert (D)—
Lines first used in 1972
1979Leonard Chabert (D)Richard Owen (D)42.2
1975 runoffClaude Berwick Duval (D)—Unopposed
1975No winner recordedClaude Berwick Duval (D)—
1972Claude Berwick Duval (D)—Unopposed
Lines first used in 1962
1968Michael H. Okeefe · Frederick Leitz Eagan (D)—Unopposed

Primaries: 1971 Democratic primary runoff · 1971 Democratic primary · 1967 Democratic primary

Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Districts that overlap District 20

The state's districts in other chambers that share residents with this one, and the share of District 20's area in each.

U.S. House
LA-1 76%, LA-3 21%
Louisiana House of Representatives
HD-53 59%, HD-54 37%

Who lives here, compared

Grey bars show the spread of all 38 seats. Small marks are other seats in Louisiana. The black marker is District 20.

Adults with a bachelor's degree18% 16th pct · 32nd of 38 in LA

Lower than 84% of seats.

White adults without a degree60% 92nd pct · 4th of 38 in LA

Higher than 92% of seats.

Hispanic residents8% 70th pct · 12th of 38 in LA

Higher than 70% of seats.

Black residents12% 11th pct · 34th of 38 in LA

Lower than 89% of seats.

Asian residents1% 24th pct · 29th of 38 in LA

Lower than 76% of seats.

People per square mile40 14th pct · 33rd of 38 in LA

Less dense than 86% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

District 30
LouisianaR+70.7Not up in 2026District 26
LouisianaR+61.9Not up in 2026District 28
25% BlackR+50.1Not up in 2026District 13
22% college gradsR+68.6Not up in 2026

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET