Ohio

Champaign

38,714
2020 population
1810
first census record
22
census records

About Champaign

Champaign, Ohio, first appears in the United States federal census in 1810, when it recorded a population of 6,303. At the most recent census, in 2020, its population stood at 38,714.

Its recorded population peaked at 40,097 in 2010, and has since declined by roughly 3 percent.

On the ground today, 2 documented military engagements have been recorded within the county, among them Logan's Raid on Mackochee, Morgan's Raid — Mechanicsburg Ohio Skirmish, and 35 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202038,714
201040,097
200038,890
199036,019
198033,649
197030,491
196029,714
195026,793
194025,258
193024,103
192025,071
191026,351
190026,642
189026,980
188027,817
187024,188
186022,698
185019,782
184016,721
183012,131
18208,479
18106,303
Source

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

Battles & engagements in Champaign

Military engagements that took place in Champaign, Ohio.

Logan's Raid on Mackochee
1786
Morgan's Raid — Mechanicsburg Ohio Skirmish
1863

Historic places in Champaign

National Register of Historic Places listings in Champaign, Ohio.

Demand-Gest House
Mechanicsburg
Kimball House
Mechanicsburg
Hunter, Norvall, Farm
Mechanicsburg
Mosgrove, Dr. Adam, House
Urbana
United Methodist Church
Mechanicsburg
Lowler's Tavern
Mechanicsburg
Ninchelser, Dr., House
Mechanicsburg
Masonic Temple
Mechanicsburg
Monitor House
Saint Paris
Urbana College Historic Buildings
Urbana
Village Hobby Shop
Mechanicsburg
Ward, John Q. A., House
Urbana
St. Michael Catholic Church
Mechanicsburg
Mt. Tabor Church Building, Cemetery and Hitching Lot
West Liberty
St. Paul AME Church
Urbana
Nutwood Place
Urbana
Clark, Dr., House
Mechanicsburg
Mechanicsburg Baptist Church
Mechanicsburg
Church Of Our Savior
Mechanicsburg
Urbana Monument Square Historic District
Urbana
Richards-Sewall House
Urbana
Culbertson, William, House
Mechanicsburg
Second Baptist Church
Mechanicsburg
Hamer's General Store
Mechanicsburg
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Other counties in Ohio

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Everything a full report reveals about Champaign County, Ohio

This page charts the census history of Champaign 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 Champaign

When does Champaign first appear in the US census?
Champaign, Ohio first appears in the federal census in 1810, with a recorded population of 6,303.
What is the population of Champaign?
At the most recent federal census (2020), Champaign had a recorded population of 38,714.
When did Champaign's population peak?
Champaign's recorded population peaked at 40,097 in 2010.
Were any battles fought in Champaign?
2 documented military engagements took place in Champaign, including Logan's Raid on Mackochee, Morgan's Raid — Mechanicsburg Ohio Skirmish.
How many historic places are in Champaign?
35 sites are listed on the National Register of Historic Places in Champaign, Ohio.
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