Caseyville is located in Illinois. Caseyville, Illinois has a population of 4,788. Caseyville is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 28%.
The median household income in Caseyville, Illinois is $56,454. The median household income for the surrounding county is $59,624 compared to the national median of $66,222. The median age of people living in Caseyville is 41.9 years.
The average high temperature in July is 88.7 degrees, with an average low temperature in January of 20 degrees. The annual precipitation is 40.33.