Louisiana State Senate seat · lines in effect since 2022

Louisiana Senate District 18

A district of about 122,000 people, 28% of adults with a bachelor's degree. It votes R+50.9 relative to the nation for president.

2019 election

Oct 12, 2019
  1. Eddie Lambert (R) · won

Unopposed.

Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM 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+50.931st most
Democratic
Most DemocraticMost Republican20th seat · the majority lineDistrict 18

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

17 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 2012
2019Eddie Lambert (R)—Unopposed
2015Jody Amedee (R)—Unopposed
Lines first used in 2002
2011Jody Amedee (R)Flip—Unopposed
2007Jody Amedee (D)—Unopposed
2003 runoffJody Amedee (D)Jeffery Diez (D)3.2
2003No winner recordedJody Amedee (D)—
Lines first used in 1992
1999Louis J. Lambert Jr. (D)—Unopposed
1995Louis J. Lambert Jr. (D)Kirk T. Harrison (R)59.4
Lines first used in 1982
1991 runoffJoe Sevario (D)Jeffery Diez (D)4.2
1991No winner recordedJoe Sevario (D)—
1987Joe Sevario (D)—Unopposed
1983Joe Sevario (D)M. Paul Leblanc (D)30.8
Lines first used in 1972
1979Joe Sevario (D)Richard J. Brazan Jr. (D)51.7
1975 runoffJoe Sevario (D)—Unopposed
1975No winner recordedJoe Sevario (D)—
1972Louis J. Lambert Jr. (D)—Unopposed
Lines first used in 1962
1968John G. Schwegmann · Jules Mollere (D)Leonard L. Limes (R)30.0

Primaries: 1971 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 18

The state's districts in other chambers that share residents with this one, and the share of District 18's area in each.

U.S. House
LA-6 81%, LA-2 19%
Louisiana House of Representatives
HD-81 76%, HD-88 11%, HD-59 10%

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 18.

Adults with a bachelor's degree28% 70th pct · 12th of 38 in LA

Higher than 70% of seats.

White adults without a degree54% 84th pct · 7th of 38 in LA

Higher than 84% of seats.

Hispanic residents7% 51st pct · 19th of 38 in LA

Higher than 51% of seats.

Black residents14% 19th pct · 31st of 38 in LA

Lower than 81% of seats.

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

Lower than 62% of seats.

People per square mile302 65th pct · 14th of 38 in LA

Denser than 65% of seats.

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