Gilson is located in Illinois. Gilson, Illinois has a population of 148. Gilson 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 Gilson, Illinois is $60,556. The median household income for the surrounding county is $46,342 compared to the national median of $66,222. The median age of people living in Gilson is 49 years.
The average high temperature in July is 84.6 degrees, with an average low temperature in January of 13.1 degrees. The annual precipitation is 38.7.