Youngstown is a city in the U.S. state of Ohio and the county seat of Mahoning County[5] whose urban area borders Trumbull County. The city was named for John Young, an early settler from Whitestown, New York, who established the community's first sawmill and gristmill. Youngstown is located in a region of the United States that is often referred to as the Rust Belt. Traditionally known as a center of steel production, Youngstown was forced to redefine itself when the U.S. steel industry fell into decline in the 1970s, leaving communities throughout the region without major industry