- Lead
- 24,920
- Total
- 56,220
- vs nation
- R+42.9
Louisiana 31st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 25,798
- Total
- 60,351
- vs nation
- R+47.2
- Lead
- 23,409
- Total
- 57,528
- vs nation
- R+42.8
- Lead
- 21,662
- Total
- 58,547
- vs nation
- R+40.9
- Lead
- 21,140
- Total
- 57,195
- vs nation
- R+44.2
- Lead
- 20,023
- Total
- 56,188
- vs nation
- R+33.2
- Lead
- 14,016
- Total
- 50,651
- vs nation
- R+28.2
- Lead
- 198
- Total
- 49,961
- vs nation
- R+8.1
Key facts
- 2024 presidential margin
- R+44.3MIT Election Lab
- Population
- 120,9022024 5-year
- Population density
- 30 / sq mi2024 5-year · TIGER/Line
- Land area
- 4,077 sq miTIGER/Line
- Median household income
- $58,9412024 5-year
- White (non-Hispanic)
- 64.1%2024 5-year
- Black
- 23.3%2024 5-year
- Hispanic / Latino
- 4.4%2024 5-year
- Peak Democratic margin
- D+93.0 in 1896MIT Election Lab
- Peak Republican margin
- R+60.5 in 1964MIT Election Lab
- Most similar
- State Senate District 33, LA · twin score 97.6
presidential history
Party record book
Louisiana 31st State Senate 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
William J. Bryan1896
95.6%
5,323 votes · D+93.0 · modeled estimate
Runner-up · Woodrow Wilson, 1916 · 94.7%
Republican
Barry Goldwater1964
80.3%
24,895 votes · R+60.5 · modeled estimate
Runner-up · Richard Nixon, 1972 · 73.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Bill Clinton1996
22,592votes
45.2% of the vote · D+0.4 · modeled estimate
Runner-up · Jimmy Carter, 1980 · 20,987 votes
Republican
Donald Trump2020
42,633votes
70.6% of the vote · R+42.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 40,204 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
William J. Bryan1896
+99.1pts D vs U.S.
Place D+93.0 · U.S. R+6.1 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +96.2 pts
Republican
Barry Goldwater1964
+83.1pts R vs U.S.
Place R+60.5 · U.S. D+22.6 · modeled estimate
Runner-up · Donald Trump, 2020 · +47.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2018 | R | 32.5%12,039 | 67.5%25,047 | 37,086 |
Its Republican presidential margin was R+44.3 in 2024 and R+37.0 in 2008. Evangelical Protestant adherents were the largest religious group at 44.1% in the 2020 US Religion Census.
Across the recorded series it reached a Democratic high of 93.0 points in 1896 and a Republican high of 60.5 points in 1964. Between 2020 and 2024 the district moved 1.6 points toward the Republican candidate; the 2024 margin was 44.3 points.
A population of 120,902, a 64% non-Hispanic-white share, and a median household income of $58,941 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 33 and State Senate District 32.
The state-senate 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 31st State Senate District. Akashic. https://akashic.app/sld-upper/22031/. Accessed May 20, 2026. License: CC BY 4.0.