Middletown is located in Illinois. Middletown, Illinois has a population of 232. Middletown is less family-centric than the surrounding county with 24.29% of the households containing married families with children. The county average for households married with children is 28.07%.
The median household income in Middletown, Illinois is $53,125. The median household income for the surrounding county is $59,809 compared to the national median of $69,021. The median age of people living in Middletown is 45.5 years.
The average high temperature in July is 84.9 degrees, with an average low temperature in January of 17.2 degrees. The average rainfall is approximately 38.6 inches per year, with 16.5 inches of snow per year.