How did Slidell-Mandeville-Covington, LA vote in the 2024 presidential election?

Slidell-Mandeville-Covington, LA voted Republican in 2024 with a margin of R+43.8. Kamala D Harris received 37,777 votes and Donald Trump received 98,377 out of 138,384 total votes cast, a 0.4-point shift toward Democrats from 2020.

What is Slidell-Mandeville-Covington, LA's political history?

Slidell-Mandeville-Covington, LA has 40 presidential elections on record, spanning 1868 to 2024. It has voted Republican in every presidential election since 1964. The largest single-election swing was 58.7 points in 1948.

What are the demographics of Slidell-Mandeville-Covington, LA?

Slidell-Mandeville-Covington, LA has a population of 272,421 according to the 2020 Census. The racial composition is 72.4% non-Hispanic white, 8.2% Hispanic, 12.2% Black. About 38% of residents hold a bachelor's degree or higher. Median household income is $81,202.

Which places are most similar to Slidell-Mandeville-Covington, LA?

Based on demographic and electoral similarity analysis, the three most similar metro areas to Slidell-Mandeville-Covington, LA are Daphne-Fairhope-Foley, AL, Jefferson, GA, Granbury, TX. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Slidell-Mandeville-Covington, LA

Latest: 2024→ Even vs 2020

Safe Republican — 272K residents — 1 counties

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Presidential margin · 2008 → 2024

Full history

2008
R+53.4
McCain
2012
R+52.3
Romney
2016
R+50.8
Trump
2020
R+44.2
Trump
2024
R+43.8
Trump

Who lives here

Full breakdown

White72.4%
Black12.2%
Hispanic8.2%

Economy & age

Population: 272K
Median age: 40.5; +1.4pp vs U.S.
Median income: $81K; −$3K vs U.S.
College+: 38%; +2.1pp vs U.S.

Faith & language

Full detail

Catholic53.2%
Evangelical16.2%

93% English only7% Non-English

Constituent Counties

Open in Cartographer

Similarity Explorer

Similar metro areas

Nearest neighbors matched on the same place-page feature set used across the dossier system.

8 visible matches

Daphne-Fairhope-Foley, AL

Small-town rural republican 3

R+58.0

Similarity score92%

Jefferson, GA

Small-town rural republican 3

R+55.1

Similarity score92%

Granbury, TX

Small-town rural republican

R+65.9

Similarity score88%

Crestview-Fort Walton Beach-Destin, FL

Small-town rural republican 2

R+47.1

Similarity score88%

Chambersburg, PA

Small-town rural republican 3

R+43.0

Similarity score86%

St. George, UT

Small-town rural republican 3

R+51.7

Similarity score86%

York-Hanover, PA

Small-town rural republican 2

R+25.3

Similarity score86%

Bismarck, ND

Small-town rural republican 3

R+45.8

Similarity score85%

Constituent Geography

Counties in Slidell-Mandeville-Covington, LA

2024 presidential results across the counties that make up this geography.

Sort:

County	Pop.	Margin	Dem	Rep	Total	Share
St. Tammany	272K	R+43.8	37,777	98,377	138,384	100.0%

1 countiesTotal votes: 138,384

Historian Query

Ask the Historian

Explore Slidell-Mandeville-Covington, LA's political evolution with the Historian

“How has the Slidell-Mandeville-Covington, LA metro area voted in presidential elections?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

Slidell-Mandeville-Covington, LACensus ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 72.4%Black 12.2%Hispanic 8.2%Multiracial 4.7%Asian 1.4%Native American 0.8%Native Hawaiian 0.3%

Group	Local	National
▶White (Non-Hispanic)(13)	72.4%	57.4%
▶Black / African American(8)	12.2%	12.2%
▶Hispanic / Latino(16)	8.2%	19.3%
Multiracial / Other	4.7%	4.0%
▶Asian(6)	1.4%	6.0%
▶Native American / Alaska Native(2)	0.8%	0.9%
▶Middle Eastern / North African(9)	0.7%	0.9%
▶Native Hawaiian / Pacific Islander(3)	0.3%	0.2%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Religious Adherents

Population that are religious adherents:

78.7%(214.5K people)

U.S. Religion Census 2020

Browse all religions

Catholic-Evangelical edge: +42.5pp (vs national 4.5pp). A strongly Catholic-leaning religious profile, which nationally correlates with Democratic-leaning urban and suburban communities.

Ecological pattern — how to read this

Reflects patterns in counties where this religious tradition concentrates — not a claim about individual voters.

Values are derived by joining Religion Census 2020 (U.S. Religion Data Archive) with certified election results at the county level. That means we know what counties with more or fewer of this group did — not how any individual voted.

This is known as ecological inference. It is a valid way to surface geographic correlation but must not be read as a personal-vote claim about anyone in the group.

Tradition	% Pop	% Adherents	US Pop	US Adherents
Catholic	53.2%	67.6%	—	—
Evangelical Protestant	16.2%	20.6%	—	—
Mainline Protestant	5.7%	7.3%	—	—
Other	2.1%	2.6%	—	—
Black Protestant	1.5%	1.9%	—	—
LDS (Mormon)	0.7%	0.8%	—	—
Non-religiousPopulation	21.3%	—	—	—

Click the chevron to expand denominations. Tradition and denomination rows label both share of total population and share of all religious adherents. Non-religious is shown as a share of total population only.

Explore Catholic adherence nationally

Who lives in the Slidell-Mandeville-Covington, LA metro area? 272,421 residents across 1 counties.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.

Slidell-Mandeville-Covington, LA vs National272K residents

Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population

Local vs state vs U.S.

272K

local

272KNational 334.9M

Share of U.S. population

Local vs state vs U.S.

0.08%

local

0.08%National 100%

Voting-age population

Local vs state vs U.S.

75.5%

local

75.5%National 75.7%

Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income

Local vs state vs U.S.

$81,202

local

$81,202National $83,960

Poverty rate

Local vs state vs U.S.

11.4%

local

11.4%National 12.5%

College degree

Local vs state vs U.S.

37.7%

local

37.7%National 35.6%

Homeownership

Local vs state vs U.S.

78.9%

local

78.9%National 65.2%

Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age

Local vs state vs U.S.

40.5 yrs

local

40.5 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

12.9%

local

12.9%National 15.7%

Age 65+

Local vs state vs U.S.

18.4%

local

18.4%National 17.0%

Foreign born

Local vs state vs U.S.

4.5%

local

4.5%National 14.1%

Non-English at home

Local vs state vs U.S.

7.0%

local

7.0%National 22.2%

English only

Local vs state vs U.S.

93.0%

local

93.0%National 77.8%

Voter Turnout

Turnout in Slidell-Mandeville-Covington, LA

Turnout % = votes cast ÷ citizen voting-age population (CVAP). Source: CVAP Special Tab 2020-2024.

2024 Turnout

68.3%

vs Previous

-0.9pp

Eligible Non-Voters

64K · 31.7%

Citizen VAP

202,591

History

1988–2024

Competitiveness

How competitive is Slidell-Mandeville-Covington, LA?

Safe RAvg margin: R+46.3 (last 3 elections)

2008

R+53.4

2012

R+52.3

2016

R+50.8

2020

R+44.2

2024

R+43.8

Elasticity

9.6pp

margin range

Party Flips

last 30 years

5-Elec Avg

R+48.9

Ticket-Splitting

Do voters in Slidell-Mandeville-Covington, LA split their tickets?

Divergence between offices in the same election reveals persuadable voters.

ConsistencyHeavy splitting (8/100)

2020 Office Comparisons

Offices	Margin A	Margin B	Split
President vs Senate	R+44.2	R+60.0	15.9pp

Average divergence across office pairs: 16.0pp

Containing Geography

Located In

Slidell-Mandeville-Covington, LA sits inside these higher-level geographies.

Louisiana(State)

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