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Jefferson Parish, LA: population growth, jobs and income

Jefferson Parish lost 1,006 residents between 2024 and 2025 (−0.2%).

Jefferson Parish had an estimated 431,398 residents in 2025, down 1.9% (8,290 fewer people) since 2020. That is slower than Louisiana as a whole (−0.7%), and the 29th fastest growth of 64 counties in Louisiana.

Data as of 2025 · updated

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In the Jefferson Parish report

One-time $99 PDF: everything on this page for Jefferson Parish, ranked against Louisiana and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,190/mo2020–24
  • Vacant homes, incl. seasonal and second homes9.0%2020–24
  • New homes permitted, last 12 months6102025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration was negative in 2025: 5,553 more people moved out to other U.S. counties than moved in.

Private employers had 177,065 paid employees in mid-March 2023, −0.0% since 2018 (County Business Patterns).

Unemployment averaged 4.0% in 2025.

Builders were authorized to start 410 new homes in 2025, or 1.0 per 1,000 residents.

Median household income was $65,252 in the 2020–24 American Community Survey, +19.0% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,434th.

Part of the New Orleans-Metairie, LA metro area.

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Jefferson Parish population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
2025431,398−1,006
2024432,404+3,148
2023429,256−830
2022430,086−4,172
2021434,258−5,430
2020439,688–

Census Bureau population estimates, July 1 of each year.

What drove the change in Jefferson Parish

Jefferson Parish lost 8,290 people since 2020; the biggest drag was domestic migration (−36,782).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths+494+2,659
International migrationfrom and to other countries+4,107+25,551
Domestic migrationfrom and to other U.S. counties−5,553−36,782
Census adjustmentbalancing residual−54+282
Total change−1,006−8,290

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn LouisianaAmong U.S. counties
Population growth29th of 642,434th of 3,107
Net domestic migration per 1,000 residents58th of 642,956th of 3,108
Private-sector job growth28th of 641,880th of 3,092
Median household income18th of 641,595th of 3,107
Lowest unemployment rate14th of 641,540th of 3,108
New homes permitted per 1,000 residents45th of 642,117th of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

Get the county report — $99

The County Growth and Demographics Report for Jefferson Parish, LA as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Over 2020–25, Jefferson Parish's population change (−1.9%) was ahead of 5 of its 6 neighbouring counties and behind 1 (St. Tammany Parish).

4 of its 6 neighbouring counties had a higher median household income than Jefferson Parish's $65,252 (2020–24).

Jefferson Parish, LA and its 6 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Jefferson Parish, LA This county431,398−1.9%−12.91.0$65,252
Orleans Parish, LA362,154−5.5%−7.52.4$56,631
St. Charles Parish, LA50,586−3.7%−3.82.3$80,897
Lafourche Parish, LA95,505−2.0%−1.73.6$63,135
St. John the Baptist Parish, LA39,875−5.9%−2.81.5$66,630
Plaquemines Parish, LA22,256−5.3%−9.12.1$86,315
St. Tammany Parish, LA279,108+5.3%2.63.9$81,202

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 64 Louisiana counties · Every state

Questions

Is Jefferson Parish growing?

No. Its population fell 1.9% between 2020 and 2025, about 8,290 fewer people (Census Bureau population estimates). Louisiana as a whole changed −0.7% over the same years. That ranks 29th of 64 counties in Louisiana for population growth.

How many people moved to Jefferson Parish?

On net, none in 2025: about 5,553 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).

What is the unemployment rate in Jefferson Parish?

It averaged 4.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Jefferson Parish?

About 431,398 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Jefferson Parish?

Private employers there had 177,065 paid employees in mid-March 2023, −0.0% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in Louisiana

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Louisiana county pages carry the public federal growth figures.

Jefferson Parish data alerts

Email me when Jefferson Parish gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Jefferson Parish is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

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.