Iron County, Missouri

Iron County is a county in the St. Francois Mountains of southeastern Missouri. It had a population of 10,630 at the 2010 census. The county was officially organized on February 17, 1857, and is known for the many metallic deposits that lie within its boundaries--most notably iron, from which it takes its name. Ironton is the county seat and largest city.

Iron County is also home to some of Missouri's most striking geographic formations, including Taum Sauk Mountain, the highest peak in the state.