 About 20.2% of families and 25.5% of the population were below the poverty line, including 36.0% of those under age 18 and 17.0% of those age 65 or over.Steelville R-III School District covers the entirety of the city of Steelville, as well as the surrounding area.Steelville Elementary has 401 students grades PK, K-4.