Shelbyville is located in Illinois. Shelbyville, Illinois has a population of 3,811. Shelbyville is less family-centric than the surrounding county with 17% households with children. The county percentage for households with children is 23%.
The median household income in Shelbyville, Illinois is $42,130. The median household income for the surrounding county is $54,516 compared to the national median of $66,222. The median age of people living in Shelbyville is 42.5 years.
The average high temperature in July is 87.19 degrees, with an average low temperature in January of 17.92 degrees. The annual precipitation is 39.61.