- Lead
- 139,106
- Total
- 362,393
- vs nation
- R+36.9
Louisiana 1st Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 147,799
- Total
- 377,178
- vs nation
- R+43.6
- Lead
- 148,005
- Total
- 348,694
- vs nation
- R+44.5
- Lead
- 141,127
- Total
- 329,066
- vs nation
- R+46.7
- Lead
- 152,161
- Total
- 327,173
- vs nation
- R+53.8
- Lead
- 138,961
- Total
- 340,679
- vs nation
- R+38.3
- Lead
- 103,131
- Total
- 303,590
- vs nation
- R+34.5
- Lead
- 51,672
- Total
- 295,377
- vs nation
- R+26.0
Key facts
- 2024 presidential margin
- R+38.4MIT Election Lab
- Population
- 776,2912024 5-year
- Population density
- 211 / sq mi2024 5-year · TIGER/Line
- Land area
- 3,676 sq miTIGER/Line
- Median household income
- $78,3592024 5-year
- White (non-Hispanic)
- 67.9%2024 5-year
- Black
- 12.8%2024 5-year
- Hispanic / Latino
- 11.4%2024 5-year
- Peak Democratic margin
- D+72.5 in 1932MIT Election Lab
- Peak Republican margin
- R+62.6 in 1972MIT Election Lab
- Most similar
- Congressional District 6, LA · twin score 89.0
presidential history
Party record book
Louisiana 1st Congressional District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
86.0%
22,216 votes · D+72.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 78.2%
Republican
Richard Nixon1972
78.2%
142,442 votes · R+62.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 77.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
111,182votes
29.5% of the vote · R+39.2 · modeled estimate
Runner-up · Bill Clinton, 1996 · 110,252 votes
Republican
Donald Trump2020
258,981votes
68.7% of the vote · R+39.2 · modeled estimate
Runner-up · Donald Trump, 2024 · 247,439 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Alton B. Parker1904
+76.4pts D vs U.S.
Place D+56.7 · U.S. R+19.7 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · +54.7 pts
Republican
Barry Goldwater1964
+55.5pts R vs U.S.
Place R+32.9 · U.S. D+22.6 · modeled estimate
Runner-up · John McCain, 2008 · +53.8 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Louisiana's 1st congressional district, as drawn for the 2026 elections, takes in St. Tammany parish and parts of Jefferson, Orleans, Lafourche, and Terrebonne. About 776,300 people live within its 2026 boundaries, with a median age of 40.2. Measured on those boundaries, the district has voted Republican in every presidential election since 2012, by narrowing margins. The margin was R+42.9 in 2012, R+42.4 in 2016, R+39.2 in 2020, and R+38.4 in 2024.
Across the recorded series it reached a Democratic high of 72.5 points in 1932 and a Republican high of 62.6 points in 1972. Between 2020 and 2024 the district moved 0.8 points toward the Democratic candidate; the 2024 margin was 38.4 points.
A population of 776,291, a 68% non-Hispanic-white share, and a median household income of $78,359 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 6 and Congressional District 3.
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Louisiana 1st Congressional District. Akashic. https://akashic.app/cd/2201/. Accessed May 20, 2026. License: CC BY 4.0.