Louisiana

Jefferson

440,781
2020 population
1830
first census record
20
census records

About Jefferson

Jefferson, Louisiana, first appears in the United States federal census in 1830, when it recorded a population of 6,846. At the most recent census, in 2020, its population stood at 440,781.

Its recorded population peaked at 455,466 in 2000, and has since declined by roughly 3 percent.

On the ground today, 8 documented military engagements have been recorded within the county, among them Skirmish near Barataria (Lafitte Pirates), Battle of New Orleans — West Bank Action, Battle of New Orleans — West Bank Jan 8 1815, and 42 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020440,781
2010432,552
2000455,466
1990448,306
1980454,592
1970337,568
1960208,769
1950103,873
194050,427
193040,032
192021,563
191018,247
190015,321
189013,221
188012,166
187017,767
186015,372
185025,093
184010,470
18306,846
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in Jefferson

Military engagements that took place in Jefferson, Louisiana.

Skirmish near Barataria (Lafitte Pirates)
1814
Battle of New Orleans — West Bank Action
1815
Battle of New Orleans — West Bank Jan 8 1815
1815
British Landing at Pea Island LA
1815
Battle of New Orleans — CSS Manassas
1862
Action at Algiers / New Orleans area raids
1862
Battle of New Orleans (Farragut's fleet action)
1862
Algiers Raid (Confederate Guerrillas 1862)
1862

Historic places in Jefferson

National Register of Historic Places listings in Jefferson, Louisiana.

Magnolia Lane Plantation House
Westwego
Calkins-Orvis House
Welsh
Southern Pacific Steam Locomotive #745
Jefferson
Camp Parapet Powder Magazine
Metairie
Fort Livingston
Grand Isle
Kerner House
Gretna
Angelus
Jennings
More Mileage Gas Station
Jennings
Jennings Post Office
Jennings
St. Joseph Church-Convent of the Most Holy Sacrament Complex
Gretna
Gretna Historic District
Gretna
Funk House
Jennings
Elton United Methodist Church
Elton
Pennington, S. A., House
Elton
Jennings Carnegie Public Library
Jennings
Browse all Louisianahistoric sites ›

Other counties in Louisiana

Explore census history and historic records for more Louisiana counties.

St. BernardSt. CharlesSt. HelenaSt. JamesSt. John the BaptistSt. LandrySt. MartinSt. MarySt. TammanyTangipahoaTensasTerrebonneUnionVermilionVernonWashingtonWebsterWest Baton RougeWest CarrollWest Feliciana
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Everything a full report reveals about Jefferson County, Louisiana

This page charts the census history of Jefferson County, Louisiana. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Jefferson

When does Jefferson first appear in the US census?
Jefferson, Louisiana first appears in the federal census in 1830, with a recorded population of 6,846.
What is the population of Jefferson?
At the most recent federal census (2020), Jefferson had a recorded population of 440,781.
When did Jefferson's population peak?
Jefferson's recorded population peaked at 455,466 in 2000.
Were any battles fought in Jefferson?
8 documented military engagements took place in Jefferson, including Skirmish near Barataria (Lafitte Pirates), Battle of New Orleans — West Bank Action, Battle of New Orleans — West Bank Jan 8 1815.
How many historic places are in Jefferson?
42 sites are listed on the National Register of Historic Places in Jefferson, Louisiana.
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