Niles is a city in southern Trumbull County, Ohio, United States, situated at the confluence of the Mahoning River and Mosquito Creek. The city's population was 18,443 at the 2020 census. It is a suburb of the Youngstown–Warren metropolitan area.
National McKinley Birthplace Memorial
William McKinley, 25th President of the United States, was born and raised in Niles.
Eastwood Field, home of the Mahoning Valley Scrappers
Trumbull County is a county in the far northeast portion of the U.S. state of Ohio. As of the 2020 census, the population was 201,977. Its county seat and largest city is Warren, which developed industry along the Mahoning River. Trumbull County is part of the Youngstown–Warren, OH Metropolitan Statistical Area.
Trumbull County Courthouse