akashic
1876–2024
Slidell-Mandeville-Covington, LA·Louisiana

Slidell-Mandeville-Covington, LA has voted Republican in fourteen straight presidential elections — R+44 in 2024.

North Shore suburbs reshaped by post-Katrina population growth

1876 — 2024·38 elections
LA
LatestR+44in 2024
TypologyRealigning Affluent Suburbcluster typology
Population272,4212024 ACS

Slidell-Mandeville-Covington, LA, Louisiana: Realigning Affluent Suburb metro. In 2024, voted R+44%. Democratic peak: D+89 in 1932.

Key facts

2024 presidential margin
R+44MIT Election Lab
Political typology
Realigning Affluent SuburbAkashic typology
Population
272,4212024 5-year
Median household income
$81,2022024 5-year
White (non-Hispanic)
73.8%2024 5-year
Black
12.2%2024 5-year
Hispanic / Latino
8.2%2024 5-year
Peak Democratic margin
D+89 in 1932MIT Election Lab
Peak Republican margin
R+55 in 1972MIT Election Lab
2024 presidential election
Slidell-Mandeville-Covington, LA
TrumpR+44
—
How it voted
Share of the 2024 vote
Donald Trump ✓Republican71.1%98,377
Kamala HarrisDemocratic27.3%37,777
OtherAll other candidates1.6%2,230
D+60
R+60
1 counties, each filled by 2024 D-vs-R margin.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1876 to 2024. Most recent: −43.8% in 2024.flipped R · 1968−43.8%DR18762024
Presidential margin over time
YearMargin (D minus R)
1876No data
1880No data
1884No data
1888No data
1892+35.4%
1896+30.5%
1900+52.8%
1904+72.4%
1908+69.2%
1912+78.6%
1916+77.0%
1920+55.6%
1924+53.4%
1928+31.4%
1932+89.3%
1936+70.8%
1940+74.0%
1944+66.1%
1948+7.4%
1952+10.8%
1956−7.7%
1960+21.1%
1964+8.2%
1968−1.9%
1972−55.2%
1976−3.6%
1980−30.6%
1984−53.1%
1988−41.4%
1992−27.1%
1996−27.5%
2000−43.6%
2004−50.2%
2008−53.4%
2012−52.3%
2016−50.8%
2020−44.2%
2024−43.8%
DemocraticRepublican
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−43.8%
37,77798,377138,384
R
−44.2%
37,74699,666140,110
R
−50.8%
27,71790,915124,392
R
−52.3%
25,72884,723112,902
R
−53.4%
24,59683,078109,542
R
−50.2%
24,66575,139100,592
R
−43.6%
22,72259,19383,737
R
−27.5%
24,28144,76174,526
R
−27.1%
19,73537,83966,921
R
−41.4%
15,63838,33454,823
R
−53.1%
11,71938,66450,775
R
−30.6%
14,16127,21442,698
R
−3.6%
14,69115,82231,399
R
−55.2%
3,94915,43820,825
O
−1.9%
4,4454,84620,761
D
+8.2%
7,8836,69414,577
D
+21.1%
5,1792,85011,063
R
−7.7%
3,3733,9657,639
D
+10.8%
4,4653,5988,063
O
+7.4%
1,1647905,041
D
+66.1%
3,4507034,153
D
+74.0%
4,4756685,143
D
+70.8%
3,4775944,071
D
+89.3%
3,2061783,389
D
+31.4%
1,8119452,756
D
+53.4%
9692691,311
D
+55.6%
9672761,243
D
+77.0%
78295892
D
+78.6%
66830812
D
+69.2%
755107937
D
+72.4%
45359544
D
+52.8%
515159674
D
+30.5%
6363171,046
D
+35.4%
501239740
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Demographics

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
14.9%
French
14.1%
Irish
13.1%
English
10.8%
Italian
10.3%
American
9.6%
Scottish
1.6%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 40.5 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.2%
2.4%
75–84
2.8%
5.3%
65–74
6.0%
6.5%
55–64
6.9%
6.1%
45–54
6.3%
6.5%
35–44
6.8%
5.5%
25–34
5.7%
4.0%
18–24
3.7%
9.2%
5–17
8.7%
2.9%
<5
2.8%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$81,202
Slidell-Mandeville-Covington, LA ranks near the middle of US counties.
Slidell-Mandeville-Covington, LA$81,202
Louisiana$60,756
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
11.4%
Children face moderate poverty.
Children under 1815.0%
Working age (18–64)10.2%
Seniors (65+)11.0%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
93.0%
speak English only
Spanish4.3%
Other Indo-European1.4%
Asian & Pacific Islander1.0%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
54.8%
Baptist
9.1%
Other Christian
6.6%
Methodist
5.4%
Pentecostal & Holiness
2.9%
Mainline Protestant
1.5%
Non-Christian
0.7%
Source · 2020 US Religion Census. Remaining 19.0% of residents not counted as adherents by any reporting body.

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 eighty-nine points in 1932 and a Republican high of fifty-five points in 1972. The 2024 margin was forty-four points.

A population of 272,421, a 74% non-Hispanic-white share, and a median household income of $81,202 describe the metro.

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.
License: CC BY 4.0

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+44), carried by the Republican candidate. Out of 138,384 votes cast, 37,777 went Democratic and 98,377 went Republican.
What is Slidell-Mandeville-Covington, LA, Louisiana's political typology?
Akashic places Slidell-Mandeville-Covington, LA, Louisiana in the "Realigning Affluent Suburb" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the metro has voted Democratic 17 times, Republican 15 times, and other 2 times.
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 1964.
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 38 presidential elections in Slidell-Mandeville-Covington, LA, Louisiana from 1876 to 2024. Of those, 17 went Democratic and 15 went Republican. The metro's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.