Youngstown is a city located in Mahoning County, Ohio, in the United States. It serves as the county seat and is situated along the Mahoning River in Northeast Ohio.
According to the 2020 census, the city had a population of 60,068, ranking it as the eleventh-most populous city in the state of Ohio. The broader Mahoning Valley metropolitan area had an estimated population of 426,086 residents in 2024.