National Register Listings in
Mahoning County, Ohio

Alliance Clay Product Company Anderson, Judge William Shaw, House Arlington Avenue District Austintown Log House Baltimore & Ohio Railroad Terminal Burt Building Butler Institute Of American Art Central Tower Building City Hall Annex Crandall Park-Fifth Avenue Historic District Damascus Grade School Erie Terminal Building-Commerce Plaza Building Federal Building First National Bank Building Forest Glen Estates Historic District Forest Lawn Memorial Park Gallagher Building Helen Chapel Idora Park Jay's Lunch Jones Hall, Youngstown State University Kirtland, Jared P., House Kress Building Lake Hamilton Dam Lanterman Mill Liberty Theatre Lowellville Railroad Station Mahoning County Courthouse Mahoning National Bank Building Maple-Dell Masonic Temple McCrory Building McGuffey, William H., Boyhood Home Site McKelvey-Higbee Co. Buildings McMillan, Reuben, Free Library Mill Creek Park Historic District Mill Creek Park Suspension Bridge Neff, Conrad, House Newport Village Allotment Historic District Newton, Judge Eben, House Ohio One-Ohio Edison Old Mahoning County Courthouse Our Lady of Mount Carmel Church Peggy Ann Building Poland Center School Rayen School Realty Building Renner, George J., Jr., House Republic Iron and Steel Office Building Ruggles, Charles, House Sebring, Frank, House South Main Street District South Main Street District (Boundary Increase) Southern Park Stable St. James Episcopal Church St. John's Episcopal Church Stambaugh Building Stambaugh, Henry H., Memorial Auditorium State Theater Strouss-Hirschberg Company Tod Homestead Cemetery Gate Vaughn, Daniel, Homestead Warner Theater Wells Building Welsh Congregational Church White Bridge Wick Avenue Historic District Wick Avenue Historic District (Boundary Decrease) Wick Building Wick Park Historic District Wick Park Historic District (Boundary Increase) Youngstown Sheet and Tube Company Housing YWCA Building
The first traffic light in the world was installed in Cleveland, Ohio, in 1914. It had only two colors, red and green, and was manually operated by a police officer.
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.