Ohio

Montgomery

537,309
2020 population
1810
first census record
22
census records

About Montgomery

Montgomery, Ohio, first appears in the United States federal census in 1810, when it recorded a population of 7,722. At the most recent census, in 2020, its population stood at 537,309.

Its recorded population peaked at 606,148 in 1970, and has since declined by roughly 11 percent.

On the ground today, 3 documented military engagements have been recorded within the county, among them Sunwatch Village Conflict, Battle of Piqua / Pickaway Aug 8 1780, Ohio — Vallandigham Arrest — Civil War Civil Liberties, and 163 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020537,309
2010535,153
2000559,062
1990573,809
1980571,697
1970606,148
1960527,080
1950398,441
1940295,480
1930273,481
1920209,532
1910163,763
1900130,146
1890100,852
188078,550
187064,006
186052,230
185038,218
184031,938
183024,362
182015,999
18107,722
Source

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

Battles & engagements in Montgomery

Military engagements that took place in Montgomery, Ohio.

Sunwatch Village Conflict
1250
Battle of Piqua / Pickaway Aug 8 1780
1780
Ohio — Vallandigham Arrest — Civil War Civil Liberties
1863

Historic places in Montgomery

National Register of Historic Places listings in Montgomery, Ohio.

Commercial Building
Dayton
Insco Apartments Building
Dayton
Kenilworth Avenue Historic District
Dayton
Incinerator Site
Dayton
Dayton Aviation Heritage National Historical Park
Dayton
Oregon Historic District
Dayton
Stivers High School
Dayton
Dayton Arcade
Dayton
St. Adalbert Polish Catholic Church
Dayton
Victory Theater Building
Dayton
Holy Cross Lithuanian Roman Catholic Church
Dayton
Hawthorn Hill
Oakwood
McPherson Town Historic District
Dayton
Walters, Dr. Jefferson A., House
Dayton
Ausenbaugh-McElhenny House
Dayton
Conover Building
Dayton
Mutual Home & Savings Association Building
Dayton
Pollack, Isaac, House
Dayton
Montgomery County Courthouse
Dayton
Brooks, James, House
Dayton
Market Square
Miamisburg
Sacred Heart Church
Dayton
First Lutheran Church
Dayton
Arnold Homestead
Dayton
Browse all Ohiohistoric sites ›

Other counties in Ohio

Explore census history and historic records for more Ohio counties.

AshlandAshtabulaAthensAuglaizeBelmontBrownButlerCarrollChampaignClarkClermontClintonColumbianaCoshoctonCrawfordCuyahogaDarkeDefianceDelawareErie
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Everything a full report reveals about Montgomery County, Ohio

This page charts the census history of Montgomery County, Ohio. 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 Montgomery

When does Montgomery first appear in the US census?
Montgomery, Ohio first appears in the federal census in 1810, with a recorded population of 7,722.
What is the population of Montgomery?
At the most recent federal census (2020), Montgomery had a recorded population of 537,309.
When did Montgomery's population peak?
Montgomery's recorded population peaked at 606,148 in 1970.
Were any battles fought in Montgomery?
3 documented military engagements took place in Montgomery, including Sunwatch Village Conflict, Battle of Piqua / Pickaway Aug 8 1780, Ohio — Vallandigham Arrest — Civil War Civil Liberties.
How many historic places are in Montgomery?
163 sites are listed on the National Register of Historic Places in Montgomery, Ohio.
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