Madison is located in Illinois. Madison, Illinois has a population of 3,527. Madison is less family-centric than the surrounding county with 27% households with children. The county percentage for households with children is 28%.
The median household income in Madison, Illinois is $35,429. The median household income for the surrounding county is $63,321 compared to the national median of $66,222. The median age of people living in Madison is 35.4 years.
The average high temperature in July is 90.32 degrees, with an average low temperature in January of 21.08 degrees. The annual precipitation is 38.99.