Population
279,108
2025
+5.3% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Slidell-Mandeville-Covington, LA metro area: population growth, jobs and income
The Slidell-Mandeville-Covington, LA metro area gained 1,443 residents between 2024 and 2025 (+0.5%).
The Slidell-Mandeville-Covington, LA metro area had an estimated 279,108 residents in 2025, up 5.3% (14,119 more people) since 2020.
Data as of 2025 · updated
Map, parcel and listing layers cover North and South Carolina only for now.
Headline numbers
Net domestic migration
+720
2025
2.6 per 1,000 residents
+9,975 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Unemployment rate
3.9%
2025
+0.0 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
1,096
2025
+2.8% since 2024
3.9 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$81,202
2020–24
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
86,457
2023
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net migration (IRS tax returns)
+1,132
2022–23
Source: IRS Statistics of Income, U.S. Population Migration Data, 2022–23. People on tax returns moving in minus moving out, U.S. and abroad; the sum of the member counties (moves between them cancel out).
Population, migration, employment, permits, unemployment and income are the figures each agency publishes for the area itself (OMB Bulletin 23-01 delineation; ACS 2016-20 and CBP 2018 use the delineation of their year). IRS migration is the sum of the member counties.
What the numbers say
Net domestic migration added 720 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 86,457 paid employees in mid-March 2023 (County Business Patterns).
Unemployment averaged 3.9% in 2025.
Builders were authorized to start 1,096 new homes in 2025, or 3.9 per 1,000 residents.
Median household income was $81,202 in the 2020–24 American Community Survey.
Population growth over five years ranks 2nd of 10 Louisiana metro areas and 76th of 362 U.S. metro areas.
IRS tax-return data for 2022-2023 show a net gain of 1,132 people (the sum of its counties).
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How it ranks
| Measure | Among U.S. metro areas |
|---|---|
| Population growth | 76th of 362 |
| Net domestic migration per 1,000 residents | 126th of 362 |
| Median household income | 97th of 362 |
| Lowest unemployment rate | 163rd of 362 |
| New homes permitted per 1,000 residents | 143rd of 362 |
1st = highest (lowest for unemployment), against areas with a figure for the same period.
Fastest-growing metro areas in Louisiana · Fastest-growing metro areas in the U.S.
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Counties in this metro area
| County | Role | Residents2025 | Share of residents2025 | Change2020–2025 | Share of the change2020–2025 |
|---|---|---|---|---|---|
| St. Tammany Parish, LA | Central | 279,108 | 100.0% | +14,119 (+5.3%) | 100% |
Census Bureau population estimates (July 1). Shares are of the member counties' total; a share of the change shows only when every county moved the same way. – means no figure for the common period.
Nearby and similar metro areas
Next to this metro area
Similar in size
Questions
Is the Slidell-Mandeville-Covington, LA metro area growing?
Yes. Its population grew 5.3% between 2020 and 2025, about 14,119 more people (Census Bureau population estimates).
How many people moved to the Slidell-Mandeville-Covington, LA metro area?
On net, about 720 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
What is the unemployment rate in the Slidell-Mandeville-Covington, LA metro area?
It averaged 3.9% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of the Slidell-Mandeville-Covington, LA metro area?
About 279,108 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in the Slidell-Mandeville-Covington, LA metro area?
Private employers there had 86,457 paid employees in mid-March 2023 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
St. Tammany Parish data alerts
Email me when St. Tammany Parish gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
- IRS Statistics of Income, U.S. Population Migration Data
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.