What was the 2010 Census population of the home to the 15th largest steel producer in 2014?
Clinton Township, Butler County, Pennsylvania:  The population was 2,864 at the 2010 census. U.S. Steel: The United States Steel Corporation (), more commonly known as U.S. Steel, is an American integrated steel producer with major production operations in the United States, Canada, and Central Europe. U.S. Steel:  The company was the world's 15th largest steel producer in 2014.
2,864