Historical Markers in
Mahoning County, Ohio

1959-1975 The Vietnam War A Little Bit of Youngstown’s History Camp Stambaugh Canfield Cemetery Canfield Christian Church Canfield Congregational Church / Canfield United Methodist Church Canfield Fair Canfield Green Canfield Township Hall Canfield War Vet Museum Canfield WPA Memorial Building Central Square (1900-2004) / Stambaugh Building Central Tower / Mahoning National Bank Building Civil War Soldiers' Monument / Realty Building Crandall Park Damascus Grade School Museum Dean Hill Cemetery and Disciple Church Site Elisha Whittlesey Ervin George Bailey First Ohio Settlers in the Mahoning River Valley Forest Glen Estates Historic District Forest Lawn Memorial Park Four Heroic Chaplains Freedom Over Slavery Friends Burying Grounds Harry Burt and Good Humor / Ross Radio Company Hopewell Furnace In Memory of the Heroes of the Township Judge Turhand Kirtland Kyle-McCollum House Little Red Schoolhouse in Poland Township / Poland Township Little Steel Strike Lot 17, Friends Burying Grounds Maple-Dell Newport Village Historic District Old Cemetery Old Mahoning County Courthouse Oscar D. Boggess Homestead / Boggess Quarry Peterson Park and Clock Tower Pioneer Pavilion / Mill Creek Furnace Poland Academy and Poland Seminary Poland Village / Poland Town Hall Poland Village Hall President William McKinley's Boyhood Home Road of Remembrance Road of Remembrance Monument Southern Park Stables St. Augustine Episcopal Chapel St. Elizabeth Hospital St. James Episcopal Church Struthers Presbyterian Church The First Log School The Founding of Youngstown The Frankfort House The History of Poland The Independent Order of Odd Fellows The Little Red School House The Mahoning Dispatch Building The Old Stone Tavern The Village Green and Graveyard/Poland Presbyterian Church The Western Reserve This Tablet Placed Here in Honor of William H. Kilcawley Union National Bank Building / Central Square (1798-1899) Warner Brothers Working Class Heroes Zion Lutheran and Reformed Churchyard
The Great Serpent Mound, located in Adams County, Ohio, is a prehistoric effigy mound in the shape of a serpent that is more than 1,300 feet long. It is one of the largest effigy mounds in the world and is estimated to have been built by the Adena culture more than 1,000 years ago.
Mahoning County, located in northeastern Ohio, has a rich history dating back to its early settlement in the late 18th century. The region was initially inhabited by various Native American tribes, including the Wyandot and Delaware, before European settlers began to arrive in the late 1700s. The county's name is derived from a Native American word meaning "at the salt lick," a reference to the abundant salt deposits found in the region.

The first permanent settlement in Mahoning County was established in 1796 by Samuel Heaton and James Hillman, who built a log cabin near present-day Coitsville. As more settlers arrived, the area's population grew rapidly, driven by the development of industries such as coal mining, iron production, and agriculture. The Mahoning River, which flows through the county, played a vital role in supporting these industries, serving as a transportation route for goods and providing water power for mills.

In the mid-19th century, the establishment of railroads further boosted Mahoning County's economic growth. Youngstown, the county seat, became a thriving industrial center known for its steel mills and manufacturing industries. The city's population exploded, attracting immigrants from various European countries who sought job opportunities in the area. The steel industry, along with the manufacturing sector, brought prosperity to the county and made it a significant contributor to the nation's industrial growth.

However, the decline of the steel industry in the late 20th century had a profound impact on Mahoning County. As steel mills closed down, thousands of jobs were lost, leading to economic difficulties and population decline. In recent years, the county has worked to diversify its economy, focusing on sectors such as healthcare, education, and technology. Today, Mahoning County continues to be a vibrant region with a mix of urban and suburban communities, preserving its historical legacy while adapting to the changing times.

This timeline provides a glimpse into the major events and milestones that have shaped the history of Mahoning County, Ohio.

  • 1803 - Mahoning County is established on March 1, 1803.
  • 1804 - First courthouse in Mahoning County is constructed in Canfield.
  • 1833 - Youngstown is incorporated as a village.
  • 1846 - Youngstown becomes a city on March 3, 1846.
  • 1874 - The Mahoning County Courthouse is built in downtown Youngstown.
  • 1876 - The first telephone exchange in Mahoning County is established in Youngstown.
  • 1899 - The Youngstown Sheet and Tube Company is founded, becoming a major employer in the area.
  • 1902 - The first electric streetcar begins operation in Youngstown.
  • 1905 - Youngstown State University is established as Youngstown College.
  • 1918 - Youngstown experiences a significant increase in population during World War I due to the steel industry.
  • 1946 - The Youngstown Symphony Orchestra is founded.
  • 1952 - Mahoning County is hit by a devastating flood in March.
  • 1960 - The Mahoning Valley Scrappers minor league baseball team is established.
  • 1997 - The Youngstown-Warren Regional Airport opens, providing improved air transportation services.