Ohio

Henry

27,662
2020 population
1830
first census record
20
census records

About Henry

Henry, Ohio, first appears in the United States federal census in 1830, when it recorded a population of 262. At the most recent census, in 2020, its population stood at 27,662.

Its recorded population peaked at 29,210 in 2000, and has since declined by roughly 5 percent.

On the ground today, one documented military engagement has been recorded within the county, among them Roche de Bout Engagement (1794), and 4 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202027,662
201028,215
200029,210
199029,108
198028,383
197027,058
196025,392
195022,423
194022,756
193022,524
192023,362
191025,119
190027,282
189025,080
188020,585
187014,028
18608,901
18503,434
18402,503
1830262
Source

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

Battles & engagements in Henry

Military engagements that took place in Henry, Ohio.

Roche de Bout Engagement (1794)
1794

Historic places in Henry

National Register of Historic Places listings in Henry, Ohio.

St. Augustine's Catholic Church
Napoleon
First Presbyterian Church
Napoleon
Henry County Sheriff's Residence and Jail
Napoleon
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Everything a full report reveals about Henry County, Ohio

This page charts the census history of Henry 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 Henry

When does Henry first appear in the US census?
Henry, Ohio first appears in the federal census in 1830, with a recorded population of 262.
What is the population of Henry?
At the most recent federal census (2020), Henry had a recorded population of 27,662.
When did Henry's population peak?
Henry's recorded population peaked at 29,210 in 2000.
Were any battles fought in Henry?
1 documented military engagement took place in Henry, including Roche de Bout Engagement (1794).
How many historic places are in Henry?
4 sites are listed on the National Register of Historic Places in Henry, Ohio.
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