Steeleville, Illinois, is a city located in Randolph County. It has a population of 1,836. The population peaked in 2010 at 2,083. The population has declined by -0.78% since that time. It has an average household income of $65,936. The poverty rate is 7.27%. The median price of a home in Steeleville is $116,500. The median age of residents in Steeleville is 38.7 years, 36.3 years for males and 41.4 years for females.
According to the 2010 Census, the median age for residents of Steeleville City was 36.8 years old. There were 9.1% residents who were under the age of 18, and 24.4% were between 25 and 44 years old. There were also 19.2% residents who were 65 and older. The racial makeup of the city was 47.3% males and 52.7% females.