Alabama

Marengo

19,323
2020 population
1820
first census record
21
census records

About Marengo

Marengo, Alabama, first appears in the United States federal census in 1820, when it recorded a population of 2,933. At the most recent census, in 2020, its population stood at 19,323.

Its recorded population peaked at 39,923 in 1910, and has since declined by roughly 52 percent.

On the ground today, 5 documented military engagements have been recorded within the county, among them De Soto – Battle of Mabila Pursuit 1540, Battle of Mabila, Mabila Battle (De Soto Expedition), and 29 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202019,323
201021,027
200022,539
199023,084
198025,047
197023,819
196027,098
195029,494
194035,736
193036,426
192036,065
191039,923
190038,315
189033,095
188030,890
187026,151
186031,171
185027,831
184017,264
18307,700
18202,933
Source

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

Battles & engagements in Marengo

Military engagements that took place in Marengo, Alabama.

De Soto – Battle of Mabila Pursuit 1540
1540
Battle of Mabila
1540
Mabila Battle (De Soto Expedition)
1540
Raid on Demopolis (1863)
1863
Battle of Myrtlewood / Demopolis Area
1864

Historic places in Marengo

National Register of Historic Places listings in Marengo, Alabama.

US Post Office
Demopolis
Half-Chance Bridge
Dayton
Gaineswood
Demopolis
Confederate Park
Demopolis
Glover Mausoleum
Demopolis
White Bluff
Demopolis
Roseland Plantation
Faunsdale
Poole, William, House
Dayton
Jefferson Historic District
Jefferson
Ashe Cottage
Demopolis
Cedar Grove Plantation
Faunsdale
Bluff Hall
Demopolis
Thomaston Colored Institute
Thomaston
Demopolis Public School
Demopolis
Faunsdale Plantation
Faunsdale
Cuba Plantation
Faunsdale
Cedar Haven
Faunsdale
Cedar Crest
Faunsdale
Altwood
Faunsdale
Allen Grove
Old Spring Hill
Foscue-Whitfield House
Demopolis
Lyon-Lamar House
Demopolis
Old Courthouse
Linden
Browse all Alabamahistoric sites ›

Other counties in Alabama

Explore census history and historic records for more Alabama counties.

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Everything a full report reveals about Marengo County, Alabama

This page charts the census history of Marengo County, Alabama. 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 Marengo

When does Marengo first appear in the US census?
Marengo, Alabama first appears in the federal census in 1820, with a recorded population of 2,933.
What is the population of Marengo?
At the most recent federal census (2020), Marengo had a recorded population of 19,323.
When did Marengo's population peak?
Marengo's recorded population peaked at 39,923 in 1910.
Were any battles fought in Marengo?
5 documented military engagements took place in Marengo, including De Soto – Battle of Mabila Pursuit 1540, Battle of Mabila, Mabila Battle (De Soto Expedition).
How many historic places are in Marengo?
29 sites are listed on the National Register of Historic Places in Marengo, Alabama.
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