Indiana

Allen

385,410
2020 population
1830
first census record
20
census records

About Allen

Allen, Indiana, first appears in the United States federal census in 1830, when it recorded a population of 996. At the most recent census, in 2020, its population stood at 385,410.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 35 documented military engagements have been recorded within the county, among them Pontiac's War – Capture of Fort Miami 1763, Capture of Fort Miami 1763, Battle of Fort Miami 1763, and 78 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020385,410
2010355,329
2000331,849
1990300,836
1980294,335
1970280,455
1960232,196
1950183,722
1940155,084
1930146,743
1920114,303
191093,386
190077,270
189066,689
188054,763
187043,494
186029,328
185016,919
18405,942
1830996
Source

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

Battles & engagements in Allen

Military engagements that took place in Allen, Indiana.

Pontiac's War – Capture of Fort Miami 1763
1763
Capture of Fort Miami 1763
1763
Battle of Fort Miami 1763
1763
Destruction of Fort Miami (Indiana)
1763
Pontiac's War — Capture of Fort Miami
1763
La Balme's Defeat
1780
Miami Village Raid Prior to Harmar's Expedition (1789)
1789
Battle of Kekionga / Harmar's Defeat 1790
1790
Battle of Harmar's Defeat — First Engagement
1790
Harmar's Campaign – Attack on Kekionga October 1790
1790
Harmar's Defeat (Northwest Indian War)
1790
Harmar's Defeat – First Engagement at Chillicothe
1790
Aboite River Skirmish (1790)
1790
Battle of Harmar's Retreat
1790
Northwest Indian War — Harmar's Second Sortie
1790
Battle of the Maumee Villages — Second Day (Oct 22, 1790)
1790
Harmar's Defeat / Battle of the Maumee
1790
Harmar's Defeat — Kekionga
1790
Battle of the Maumee Villages — First Day (Oct 19, 1790)
1790
Harmar's Defeat — Second Engagement at Kekionga
1790
Little Turtle's First Attack — Colonel Hardin's Detachment
1790
Harmar's Defeat — Second Engagement (October 22, 1790)
1790
Battle of Miami Town (Kekionga)
1790
Harmar's Defeat (Ohio 1790)
1790
Defeat of Harmar's Second Column 1790
1790
Battle of Harmar's Defeat — Second Engagement
1790
Harmar's Defeat — First Engagement (October 19, 1790)
1790
Harmar's Defeat at Kekionga
1790
Battle of Kekionga (Harmar's Second Defeat)
1790
Attack on Fort Wayne 1812
1812
Skirmish at Fort Wayne
1812
Miami Village Raids after Fort Wayne Relief (Sept–Oct 1812)
1812
Siege of Fort Wayne (Sep 1812)
1812
Siege of Fort Wayne (1812)
1812
Second Battle of the Wabash — Fort Wayne Siege
1812

Historic places in Allen

National Register of Historic Places listings in Allen, Indiana.

St. Vincent Villa Historic District
Fort Wayne
Dutch Ridge Historic District
Huntertown
North Anthony Boulevard Historic District
Fort Wayne
St. Peter's Square
Fort Wayne
Schmitz Block
Fort Wayne
Peters, John Claus, House
Fort Wayne
Hagerman, William C. and Clara, House
Fort Wayne
Brookview-Irvington Park Historic District
Fort Wayne
US Post Office and Courthouse
Fort Wayne
Southwood Park Historic District
Fort Wayne
Masonic Temple
Fort Wayne
Allen County Courthouse
Fort Wayne
Fort Wayne Park and Boulevard System Historic District
Fort Wayne
Edsall, William S., House
Fort Wayne
Indian Village Historic District
Fort Wayne
Fort Wayne City Hall
Fort Wayne
Oakdale Historic District
Fort Wayne
New York Chicago and St. Louis Railroad Steam Locomotive No. 765
New Haven
Trinity Episcopal Church
Fort Wayne
Keplinger, Harry A., House
Fort Wayne
Wildwood Park Historic District
Fort Wayne
Johnny Appleseed Memorial Park
Fort Wayne
Saint Paul's Evangelical Lutheran Church
Fort Wayne
de Richardville, Chief Jean-Baptiste, House
Fort Wayne
Browse all Indianahistoric sites ›

Other counties in Indiana

Explore census history and historic records for more Indiana counties.

WhitleyAdamsBartholomewBentonBlackfordBooneBrownCarrollCassClarkClayClintonCrawfordDaviessDearbornDecaturDeKalbDelawareDuboisElkhart
Unlimited access

Everything a full report reveals about Allen County, Indiana

This page charts the census history of Allen County, Indiana. 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.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Allen County, Indiana report
Or see a real report first

Explore Indiana records

Indianahistory ›NRHP historic sites ›Notable people from Indiana

Frequently asked about Allen

When does Allen first appear in the US census?
Allen, Indiana first appears in the federal census in 1830, with a recorded population of 996.
What is the population of Allen?
At the most recent federal census (2020), Allen had a recorded population of 385,410.
Were any battles fought in Allen?
35 documented military engagements took place in Allen, including Pontiac's War – Capture of Fort Miami 1763, Capture of Fort Miami 1763, Battle of Fort Miami 1763.
How many historic places are in Allen?
78 sites are listed on the National Register of Historic Places in Allen, Indiana.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report