Louisiana

Assumption

21,039
2020 population
1810
first census record
22
census records

About Assumption

Assumption, Louisiana, first appears in the United States federal census in 1810, when it recorded a population of 2,472. At the most recent census, in 2020, its population stood at 21,039.

Its recorded population peaked at 24,128 in 1910, and has since declined by roughly 13 percent.

On the ground today, 5 documented military engagements have been recorded within the county, among them Battle of Labadieville, Battle of Georgia Landing (Labadieville), Battle of Georgia Landing, and 9 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202021,039
201023,421
200023,388
199022,753
198022,084
197019,654
196017,991
195017,278
194018,541
193015,990
192017,912
191024,128
190021,620
189019,629
188017,010
187013,234
186015,379
185010,538
18407,141
18305,669
18203,576
18102,472
Source

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

Battles & engagements in Assumption

Military engagements that took place in Assumption, Louisiana.

Battle of Labadieville
1862
Battle of Georgia Landing (Labadieville)
1862
Battle of Georgia Landing
1862
Battle of Cox's Plantation (Donaldsonville area)
1863
CSS Webb — Final Dash for the Sea
1865

Historic places in Assumption

National Register of Historic Places listings in Assumption, Louisiana.

St. Philomene Catholic Church and Rectory
Labadieville
St. Elizabeth Catholic Church
Paincourtville
Belle Alliance
Donaldsonbille
Christ Episcopal Church and Cemetery
Napoleonville
Madewood
Napoleonville
Church of the Assumption of the Blessed Virgin Mary
Plattenville
St. Anne Catholic Church
Napoleonville
Browse all Louisianahistoric sites ›

Other counties in Louisiana

Explore census history and historic records for more Louisiana counties.

RichlandSabineSt. BernardSt. CharlesSt. HelenaSt. JamesSt. John the BaptistSt. LandrySt. MartinSt. MarySt. TammanyTangipahoaTensasTerrebonneUnionVermilionVernonWashingtonWebsterWest Baton Rouge
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Everything a full report reveals about Assumption County, Louisiana

This page charts the census history of Assumption 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 Assumption

When does Assumption first appear in the US census?
Assumption, Louisiana first appears in the federal census in 1810, with a recorded population of 2,472.
What is the population of Assumption?
At the most recent federal census (2020), Assumption had a recorded population of 21,039.
When did Assumption's population peak?
Assumption's recorded population peaked at 24,128 in 1910.
Were any battles fought in Assumption?
5 documented military engagements took place in Assumption, including Battle of Labadieville, Battle of Georgia Landing (Labadieville), Battle of Georgia Landing.
How many historic places are in Assumption?
9 sites are listed on the National Register of Historic Places in Assumption, Louisiana.
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