Stonington is located in Illinois. Stonington, Illinois has a population of 824. Stonington is more family-centric than the surrounding county with 25% households with children. The county percentage for households with children is 24%.
The median household income in Stonington, Illinois is $62,883. The median household income for the surrounding county is $53,872 compared to the national median of $66,222. The median age of people living in Stonington is 38.3 years.
The average high temperature in July is 87.8 degrees, with an average low temperature in January of 15.4 degrees. The annual precipitation is 37.58.