House districts / Louisiana


Louisiana's 4th congressional district

LA-4. Redrawn for 2026: the November 2026 election is on new lines. The outline shows the 2024 district with the same number.

Mike Johnson
Current member, elected on the 2024 lines
Mike Johnson
Republican. In office since 2017.
2026 lines2024 lines

Fundraising

1 other candidate has not filed.

Federal Election Commission, candidate totals, public domain.

President in this district

PollCheck calculation from precinct returns on the 2026 lines (method).

YearDemocratRepublicanOtherMargin2024 lines
2024Harris 32.2%Trump 66.6%1.2%R+34.4R+52.3
2020Biden 34.3%Trump 64.2%1.6%R+29.9R+49.4
2016Clinton 34.0%Trump 63.0%2.9%R+29.0R+49.7

Who lives here

MeasureThis districtUS
People
Population
776,337
Adults (18+)
590,468
Citizens, % of adults*
98.3%
92.1%
Age, % of adults
18 to 29*
19.5%
20.3%
30 to 44*
25.8%
25.9%
45 to 64*
31.5%
31.8%
65 and over*
23.3%
22.0%
Race and Hispanic origin, % of residents
White
58.9%
57.8%
Black
30.2%
12.1%
Hispanic
4.8%
18.7%
Asian
1.1%
5.9%
Other or more than one
5.0%
5.5%
Education and income
Bachelor's degree or higher, % of 25+*
21.8%
35.7%
Median household income*
$54,340
$80,734

* Estimated for the 2026 lines from census blocks (ACS 2020-2024). Population, adults and race: 2020 Census, counted on the 2026 lines. The tick marks the US figure.

Winning margin

Results since 1976

YearWinnerShare Runner-upShareMargin
2024 lines, elections 2024: redrawn for 2026 Louisiana Act 2 of 2024 (SB 8)
2024Mike Johnson Republican85.8%Joshua Morott Republican14.2%R+71.6
Earlier lines, elections 2022 seat count changed from 5 to 6 after the census
2022Mike Johnson RepublicanUnopposed: no vote counted
Earlier lines, elections 2020 seat count changed from 6 to 5 after the census
2020Mike Johnson Republican60.4%Kenny Houston Democrat others 14.1%25.5%R+34.9
Earlier lines, elections 2012-2018 seat count changed from 7 to 6 after the census
2018Mike Johnson Republican64.2%Ryan Trundle Democrat others 2.1%33.6%R+30.6
2016"Mike" Johnson Republican32.5%Ralph "Trey" Baucum Republican others 48.7%18.8%R+13.8
2014John Fleming Republican73.4%Randall Lord Libertarian26.6%R+46.9
2012John Fleming Republican75.3%Randall Lord Libertarian24.7%R+50.6
Earlier lines, elections 2002-2010 post-census redistricting
2010John Fleming Republican62.3%David Melville Democrat others 5.3%32.4%R+30.0
2008John Fleming Republican48.1%Paul J. Carmouche Democrat others 4.2%47.7%R+0.4
2006Jim McCrery Republican57.4%Artis R. Cash, Sr. Democrat others 25.6%16.9%R+40.5
2004Jim McCrery RepublicanUnopposed: no vote counted
2002Jim McCrery Republican71.6%John Milkovich Democrat others 1.9%26.4%R+45.2
Earlier lines, elections 1992-2000 seat count changed from 8 to 7 after the census
2000Jim McCrery Republican70.5%Phillip R. Green Democrat others 4.4%25.1%R+45.5
1998Jim McCrery RepublicanUnopposed: no vote counted
1996Jim McCrery RepublicanUnopposed: no vote counted
1994Cleo Fields DemocratUnopposed: no vote counted
1992Cleo Fields Democrat73.9%Charles Jones Democrat26.1%D+47.8
Earlier lines, elections 1982-1990 post-census redistricting
1990Jim McCrery RepublicanUnopposed: no vote counted
1988Jim McCrery RepublicanUnopposed: no vote counted
1986Buddy Roemer III DemocratUnopposed: no vote counted
1984"Buddy" Roemer DemocratUnopposed: no vote counted
1982Charles "Buddy" Roemer DemocratUnopposed: no vote counted
Earlier lines, elections 1976-1980
1980Buddy Roemer Democrat63.8%Claude "Buddy" Leach Democrat36.2%D+27.7
1978Claude "Buddy" Leach Democrat50.1%James Hamilton Wilson Republican49.9%D+0.2
1976Joe D. Waggonner, Jr. Democrat100.0%D+100.0

More on Louisiana

Other Louisiana districts

About these results

Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.

President in this district: 2016 and 2020, and 2024 on the new lines, are estimates: precinct votes are split between districts by census block. The last column is the margin in LA-4 on the 2024 lines.

Counties only partly inside the district show the 2024 result for that part; estimates are labelled.

Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.

Who lives here (2026 lines) is estimated from Census survey figures split by population.

Sources

Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).

Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).

District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.

Members: unitedstates/congress-legislators (CC0).

Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.

Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024; 2020 Census P.L. 94-171 (public domain).

2028 candidates: Federal Election Commission (public domain).

Photos: official portraits, public domain (US government); see Photo credits.

PollCheck US. Data through November 5, 2026. Photo credits