Sparta is located in Illinois. Sparta, Illinois has a population of 4,246. Sparta is more family-centric than the surrounding county with 29% households with children. The county percentage for households with children is 25%.
The median household income in Sparta, Illinois is $51,576. The median household income for the surrounding county is $56,783 compared to the national median of $66,222. The median age of people living in Sparta is 42.2 years.
The average high temperature in July is 88.3 degrees, with an average low temperature in January of 20.3 degrees. The annual precipitation is 42.74.