Ohio

Mahoning

228,614
2020 population
1850
first census record
18
census records

About Mahoning

Mahoning, Ohio, first appears in the United States federal census in 1850, when it recorded a population of 23,735. At the most recent census, in 2020, its population stood at 228,614.

Its recorded population peaked at 303,424 in 1970, and has since declined by roughly 25 percent.

On the ground today, 78 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020228,614
2010238,823
2000257,555
1990264,806
1980289,487
1970303,424
1960300,480
1950257,629
1940240,251
1930236,142
1920186,310
1910116,151
190070,134
189055,979
188042,871
187031,001
186025,894
185023,735
Source

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

Historic places in Mahoning

National Register of Historic Places listings in Mahoning, Ohio.

Wick Park Historic District
Youngstown
Warner Theater
Youngstown
Baltimore & Ohio Railroad Terminal
Youngstown
Helen Chapel
Youngstown
Austintown Log House
Youngstown
Liberty Theatre
Youngstown
Alliance Clay Product Company
Alliance
Butler Institute Of American Art
Youngstown
Anderson, Judge William Shaw, House
Austintown
Erie Terminal Building-Commerce Plaza Building
Youngstown
State Theater
Youngstown
Rayen School
Youngstown
Mill Creek Park Suspension Bridge
Youngstown
St. James Episcopal Church
Boardman
Idora Park
Youngstown
Stambaugh, Henry H., Memorial Auditorium
Youngstown
McGuffey, William H., Boyhood Home Site
Coitsville Township
Our Lady of Mount Carmel Church
Youngstown
Renner, George J., Jr., House
Youngstown
Wick Building
Youngstown
Welsh Congregational Church
Youngstown
YWCA Building
Youngstown
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 Mahoning County, Ohio

This page charts the census history of Mahoning 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 Mahoning

When does Mahoning first appear in the US census?
Mahoning, Ohio first appears in the federal census in 1850, with a recorded population of 23,735.
What is the population of Mahoning?
At the most recent federal census (2020), Mahoning had a recorded population of 228,614.
When did Mahoning's population peak?
Mahoning's recorded population peaked at 303,424 in 1970.
How many historic places are in Mahoning?
78 sites are listed on the National Register of Historic Places in Mahoning, Ohio.
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