HarrisDemocratic27.3%37,777TrumpRepublican71.1%98,377OtherAll other candidates1.6%2,230
R+43.8- Lead
- 60,600
- Total
- 138,384
- vs nation
- R+42.3
Akashicmetro area
Slidell-Mandeville-Covington, LA
Office (updates table and map)
President margin by year
Place winner margin
1 counties by 2024 margin · County returns · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic26.9%37,746TrumpRepublican71.1%99,666OtherAll other candidates1.9%2,698
R+44.2- Lead
- 61,920
- Total
- 140,110
- vs nation
- R+48.6
ClintonDemocratic22.3%27,717TrumpRepublican73.1%90,915OtherAll other candidates4.6%5,760
R+50.8- Lead
- 63,198
- Total
- 124,392
- vs nation
- R+52.9
ObamaDemocratic22.8%25,728RomneyRepublican75.0%84,723OtherAll other candidates2.2%2,451
R+52.3- Lead
- 58,995
- Total
- 112,902
- vs nation
- R+56.1
ObamaDemocratic22.5%24,596McCainRepublican75.8%83,078OtherAll other candidates1.7%1,868
R+53.4- Lead
- 58,482
- Total
- 109,542
- vs nation
- R+60.7
KerryDemocratic24.5%24,665BushRepublican74.7%75,139OtherAll other candidates0.8%788
R+50.2- Lead
- 50,474
- Total
- 100,592
- vs nation
- R+47.7
GoreDemocratic27.1%22,722BushRepublican70.7%59,193OtherAll other candidates2.2%1,822
R+43.6- Lead
- 36,471
- Total
- 83,737
- vs nation
- R+44.1
ClintonDemocratic32.6%24,281DoleRepublican60.1%44,761OtherAll other candidates7.4%5,484
R+27.5- Lead
- 20,480
- Total
- 74,526
- vs nation
- R+36.0
Key facts
- 2024 presidential margin
- R+43.8MIT Election Lab
- Population
- 272,4212024 5-year
- Population density
- 322 / sq mi2024 5-year · TIGER/Line
- Land area
- 845 sq miTIGER/Line
- Median household income
- $81,2022024 5-year
- White (non-Hispanic)
- 72.4%2024 5-year
- Black
- 12.0%2024 5-year
- Hispanic / Latino
- 8.2%2024 5-year
- Peak Democratic margin
- D+89.3 in 1932MIT Election Lab
- Peak Republican margin
- R+55.2 in 1972MIT Election Lab
- Most similar
- Lafayette, LA · twin score 81.3
presidential history
Party record book
Slidell-Mandeville-Covington, LA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
94.6%
3,206 votes · D+89.3
Runner-up · Woodrow Wilson, 1916 · 87.7%
Republican
Ronald Reagan1984
76.1%
38,664 votes · R+53.1
Runner-up · John McCain, 2008 · 75.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
37,777votes
27.3% of the vote · R+43.8
Runner-up · Joe Biden, 2020 · 37,746 votes
Republican
Donald Trump2020
99,666votes
71.1% of the vote · R+44.2
Runner-up · Donald Trump, 2024 · 98,377 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
+92.1pts D vs U.S.
Place D+72.4 · U.S. R+19.7
Runner-up · James M. Cox, 1920 · +81.8 pts
Republican
John McCain2008
+60.7pts R vs U.S.
Place R+53.4 · U.S. D+7.3
Runner-up · Mitt Romney, 2012 · +56.1 pts
U.S. House elections · 1 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2018 | R | 24.4%22,665 | 75.6%70,352 | 93,017 |
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+25.8
Presidential vote · 2024R+43.8
Registration leans Republican; the presidential vote runs 18 points more Republican than the rolls.
195,588 registered voters · 2024
domestic migration
Who moves in and out
Net domestic migration over time
+720 net domestic migration · 2025
20112025
Net +28,178 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | +1,262 |
| 2012 | +1,411 |
| 2013 | +2,143 |
| 2014 | +2,284 |
| 2015 | +2,730 |
| 2016 | +2,381 |
| 2017 | +2,551 |
| 2018 | +1,547 |
| 2019 | +1,894 |
| 2021 | +4,885 |
| 2022 | +2,572 |
| 2023 | +1,225 |
| 2024 | +573 |
| 2025 | +720 |
The Lake Pontchartrain corridor absorbed tens of thousands of New Orleans evacuees after 2005, accelerating demographic and political shifts in St. Tammany Parish, one of the fastest-growing and most reliably Republican-leaning metros in Louisiana.
Across the recorded series it reached a Democratic high of 89.3 points in 1932 and a Republican high of 55.2 points in 1972. The 2024 margin was 43.8 points.
A population of 272,421, a 72% non-Hispanic-white share, and a median household income of $81,202 describe the metro. The metro's voting pattern over the last decade is most similar to that of Lafayette, LA and Brenham, TX.
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Lafayette, LA
81.3twin score
elasticityFrench ancestry2008–2012 trajectory≠ 2000 margin
Brenham, TX
74.4twin score
2000–2012 trajectory≠ % Catholic
Fredericksburg, TX
74.3twin score
2004–2012 trajectory% unaffiliated≠ median age
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Slidell-Mandeville-Covington, LA, Louisiana. Akashic. https://akashic.app/cbsa/43640/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Slidell-Mandeville-Covington, LA, Louisiana vote in 2024?
In 2024, Slidell-Mandeville-Covington, LA, Louisiana voted Republican by 43.8 points (R+43.8), carried by the Republican candidate. Out of 138,384 votes cast, 37,777 went Democratic and 98,377 went Republican.
When did Slidell-Mandeville-Covington, LA, Louisiana last vote Democratic?
The most recent presidential election in which Slidell-Mandeville-Covington, LA, Louisiana voted Democratic was 1960.
How many people live in Slidell-Mandeville-Covington, LA, Louisiana?
Slidell-Mandeville-Covington, LA, Louisiana has a population of 272,421 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Slidell-Mandeville-Covington, LA, Louisiana?
Median household income in Slidell-Mandeville-Covington, LA, Louisiana is $81,202 — above the national median of $80,734. The Louisiana state median is $60,756.
What is the political history of Slidell-Mandeville-Covington, LA, Louisiana?
Akashic tracks 34 presidential elections in Slidell-Mandeville-Covington, LA, Louisiana from 1892 to 2024. Of those, 16 went Democratic and 16 went Republican.