† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupSlidell-Mandeville-Covington, LALouisianaUnited States
German14.9%6.9%12.5%
French14.1%9.6%1.6%
Irish13.1%6.6%9.4%
English10.8%7.3%9.5%
Italian10.3%4.3%4.8%
American9.6%7.4%5.3%
Scottish1.6%1.0%1.3%
French Canadian1.5%1.6%—
African American†11.2%29.3%9.9%
African0.2%0.8%0.5%
Haitian0.2%—0.3%
Trinidadian and Tobagonian0.2%——
Mexican2.0%2.1%11.3%
Honduran1.8%1.6%0.3%
Spanish1.1%0.7%—
Spaniard0.8%0.2%—
Puerto Rican0.6%0.4%1.8%
Guatemalan0.3%0.2%0.5%
Cuban0.2%0.3%0.7%
Nicaraguan0.2%——
Aztec0.3%——
Samoan0.2%——
Vietnamese0.5%0.5%0.6%
Asian Indian0.2%0.2%1.4%
Chinese0.2%0.2%1.3%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Slidell-Mandeville-Covington, LA
Louisiana
United States
Median age
40.5
38
39.1
Age 18–24
7.7%
9.1%
9.2%
Age 65 and older
18.4%
16.8%
17.2%
Household economy
Measure
Slidell-Mandeville-Covington, LA
Louisiana
United States
Median household income
$81,202
$60,756
$84,427
Poverty rate
11.4%
19.0%
12.5%
Bachelor's degree or higher (25+)
37.7%
27.1%
35.6%
Languages at home
Measure
Slidell-Mandeville-Covington, LA
Louisiana
United States
Speaks a non-English language at home
7.0%
8.5%
22.3%
Spanish
4.3%
4.7%
13.6%
Religious landscape
Measure
Slidell-Mandeville-Covington, LA
Louisiana
United States
Catholic
54.8%
26.8%
18.6%
Evangelical Protestant
16.7%
25.0%
16.5%
Unclaimed / not counted
18.9%
36.8%
51.5%
Mainline Protestant
5.9%
3.6%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Slidell-Mandeville-Covington, LA
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
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
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
27.3%Harris37,777
71.1%Trump98,377
1.6%
R+43.8
D+0.4
R+42.3
138,384
R
26.9%Biden37,746
71.1%Trump99,666
1.9%
R+44.2
D+6.6
R+48.6
140,110
R
22.3%Clinton27,717
73.1%Trump90,915
4.6%
R+50.8
D+1.4
R+52.9
124,392
R
22.8%Obama25,728
75.0%Romney84,723
2.2%
R+52.3
D+1.1
R+56.1
112,902
R
22.5%Obama24,596
75.8%McCain83,078
1.7%
R+53.4
R+3.2
R+60.7
109,542
R
24.5%Kerry24,665
74.7%Bush75,139
0.8%
R+50.2
R+6.6
R+47.7
100,592
R
27.1%Gore22,722
70.7%Bush59,193
2.2%
R+43.6
R+16.1
R+44.1
83,737
R
32.6%Clinton24,281
60.1%Dole44,761
7.4%
R+27.5
R+0.4
R+36.0
74,526
R
29.5%Clinton19,735
56.5%Bush37,839
14.0%
R+27.1
D+14.3
R+32.6
66,921
R
28.5%Dukakis15,638
69.9%Bush38,334
1.6%
R+41.4
D+11.7
R+33.7
54,823
R
23.1%Mondale11,719
76.1%Reagan38,664
0.8%
R+53.1
R+22.5
R+34.8
50,775
R
33.2%Carter14,161
63.7%Reagan27,214
3.1%
R+30.6
R+27.0
R+20.8
42,698
R
46.8%Carter14,691
50.4%Ford15,822
2.8%
R+3.6
D+51.6
R+5.7
31,399
R
19.0%McGovern3,949
74.1%Nixon15,438
6.9%
R+55.2
R+53.2
R+32.0
20,825
O
21.4%Humphrey4,445
23.3%Nixon4,846
55.2%
Wallace +31.9
D+6.2
R+1.2
20,761
R
45.9%Johnson6,694
54.1%Goldwater7,883
0.0%
R+8.2
R+29.2
R+30.7
14,577
D
46.8%Kennedy5,179
25.8%Nixon2,850
27.4%
D+21.1
D+28.8
D+20.9
11,063
R
44.2%Stevenson3,373
51.9%Eisenhower3,965
3.9%
R+7.7
R+18.5
D+7.7
7,639
D
55.4%Stevenson4,465
44.6%Eisenhower3,598
0.0%
D+10.8
D+3.3
D+21.5
8,063
O
23.1%Truman1,164
15.7%Dewey790
61.2%
Thurmond +38.1
R+58.7
D+2.9
5,041
D
83.1%Roosevelt3,450
16.9%Dewey703
0.0%
D+66.1
R+7.9
D+58.7
4,153
D
87.0%Roosevelt4,475
13.0%Willkie668
0.0%
D+74.0
D+3.2
D+64.1
5,143
D
85.4%Roosevelt3,477
14.6%Landon594
0.0%
D+70.8
R+18.5
D+46.6
4,071
D
94.6%Roosevelt3,206
5.3%Hoover178
0.1%
D+89.3
D+57.9
D+71.6
3,389
D
65.7%Smith1,811
34.3%Hoover945
0.0%
D+31.4
R+22.0
D+48.9
2,756
D
73.9%Davis969
20.5%Coolidge269
5.6%
D+53.4
R+2.2
D+78.6
1,311
D
77.8%Cox967
22.2%Harding276
0.0%
D+55.6
R+21.4
D+81.8
1,243
D
87.7%Wilson782
10.7%Hughes95
1.7%
D+77.0
R+1.6
D+73.9
892
D
82.3%Wilson668
3.7%Taft30
14.0%
D+78.6
D+9.4
D+59.0
812
D
80.6%Bryan755
11.4%Taft107
8.0%
D+69.2
R+3.3
D+78.7
937
D
83.3%Parker453
10.8%Roosevelt59
5.9%
D+72.4
D+19.6
D+92.1
544
D
76.4%Bryan515
23.6%McKinley159
0.0%
D+52.8
D+22.3
D+60.4
674
D
60.8%Bryan636
30.3%McKinley317
8.9%
D+30.5
R+4.9
D+36.6
1,046
D
67.7%Cleveland501
32.3%Harrison239
0.0%
D+35.4
—
D+33.7
740
Congressional elections · 2 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2022
R
9.0%8,520
72.6%68,694
94,655
2020
R
11.5%15,777
71.6%98,016
136,953
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+25.8
vs
Presidential vote · 2024R+43.8
Registration leans Republican; the presidential vote runs 18 points more Democratic.
195,588 registered voters · 2024
Democratic21.4%Republican47.2%Other31.4%
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
Domestic migration in Slidell-Mandeville-Covington, LA in Slidell-Mandeville-Covington, LA: net domestic migration by year
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.
Akashic
Political twins — metros
The metros 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.
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 →
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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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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.
