Founded in 1857, Iron County is one of 114 counties in the state of Missouri. Historically, Iron County was formed from Madison, Reynolds, St. Francois, Washington and Wayne counties. The city of Ironton is the county seat. With FIPS code of 93, Iron County has a population of 9,408 and area of 551 square miles (1,427 km2).
List of all cities in Iron County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Annapolis, MO | 63620 | 573 |
| Arcadia, MO | 63621 | 573 |
| Belleview, MO | 63623 | 573 |
| Bixby, MO | 65439 | 573 |
| Des Arc, MO | 63636 | 573 |
| Glover, MO | 63620 | 573 |
| Goodland, MO | 63623 | 573 |
| Iron Mountain, MO | 63650 | 573 |
| Ironton, MO | 63650 | 573 |
| Middle Brook, MO | 63656 | 573 |
| Pilot Knob, MO | 63663 | 573 |
| Rosel, MO | 63650 | 573 |
| Steelville, MO | 65566 | 573 |
| Viburnum, MO | 65566 | 573 |
| Vulcan, MO | 63675 | 573 |