IRONTON, a city of southern Ohio, U.S.A., on the Ohio river, 142m. E.S.E. of Cincinnati, opposite Russell, Ky. ; the county seat of Lawrence county. It is on Federal highway 52, and is served by the Chesapeake and Ohio, the Detroit, Toledo and Iron ton and the Norfolk and Western railways, and by river boats. The population was 14,007 in 1920 (92% native white) and was 16,621 by the Federal census of 1930. The hills, which rise from
the river bottom, are rich in iron ore, coal, limestone and fire-clay. The city has large mining and lumber interests, and important iron manufactures and cement works. The output of its factories in 1925 was valued at $10,878,919. Ironton was settled in 1848 and incorporated as a city in 1851.