Ohio

Richland

124,936
2020 population
1820
first census record
21
census records

About Richland

Richland, Ohio, first appears in the United States federal census in 1820, when it recorded a population of 9,169. At the most recent census, in 2020, its population stood at 124,936.

Its recorded population peaked at 131,205 in 1980, and has since declined by roughly 5 percent.

On the ground today, 71 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020124,936
2010124,475
2000128,852
1990126,137
1980131,205
1970129,997
1960117,761
195091,305
194073,853
193065,902
192055,178
191047,667
190044,289
189038,072
188036,306
187032,516
186031,158
185030,879
184044,532
183024,006
18209,169
Source

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

Historic places in Richland

National Register of Historic Places listings in Richland, Ohio.

Richland Trust Building
Mansfield
Soldiers and Sailors Memorial Building and Madison Theater
Mansfield
Ferrell, Silas, House
Shiloh
Malabar Farm
Lucas
Kingwood Center (Additional Documentation)
Mansfield
Oak Hill Cottage
Mansfield
First Congregational Church And Lexington School
Lexington
Ohio State Reformatory
Mansfield
Raemelton Farm Historic District
Mansfield
Ohio Theatre
Mansfield
Lewis, Samuel, House
Mansfield
Bushnell, Martin, House
Mansfield
All Souls Unitarian-Universalist Church
Bellville
St. Peters Church
Mansfield
Browse all Ohiohistoric sites ›

Other counties in Ohio

Explore census history and historic records for more Ohio counties.

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Everything a full report reveals about Richland County, Ohio

This page charts the census history of Richland 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 Richland

When does Richland first appear in the US census?
Richland, Ohio first appears in the federal census in 1820, with a recorded population of 9,169.
What is the population of Richland?
At the most recent federal census (2020), Richland had a recorded population of 124,936.
When did Richland's population peak?
Richland's recorded population peaked at 131,205 in 1980.
How many historic places are in Richland?
71 sites are listed on the National Register of Historic Places in Richland, Ohio.
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