The Rust Belt, formerly the Steel Belt, is a region of the Northeastern, Midwestern United States, and the very northern parts of the Southern United States. It includes Western New York, Pennsylvania, Ohio, West Virginia, Indiana, Illinois, the Lower Peninsula of Michigan, southeastern Wisconsin, and small parts of Kentucky, New Jersey, and the St. Louis metropolitan area in Missouri. Cities in the Rust Belt include Allentown, Buffalo, Chicago, Cincinnati, Cleveland, Detroit, Gary, Milwaukee, Philadelphia, Pittsburgh, Rochester, Toledo, Trenton, and Youngstown.
The rusting steel stacks of Bethlehem Steel in Bethlehem, Pennsylvania, one of the world's largest manufacturers of steel for most of the 20th century. In 1982, however, Bethlehem Steel suspended most of its manufacturing. The company filed bankruptcy in 2001 and was dissolved in 2003.