Ironton
- County:
- Lawrence County
- County Seat:
- Yes
- Area (mi²):
- 4.469
- State:
- Ohio
Ironton is a city located in Lawrence County, Ohio. Ironton has a 2026 population of 10,147. It is also the county seat of Lawrence County. Ironton is currently declining at a rate of -0.46% annually and its population has decreased by -3.85% since the most recent census, which recorded a population of 10,553 in 2020.