Illinois City is located in Illinois. Illinois City, Illinois has a population of 59. Illinois City is less family-centric than the surrounding county with 0% of the households containing married families with children. The county average for households married with children is 26.3%.
The median household income in Illinois City, Illinois is $39,722. The median household income for the surrounding county is $58,974 compared to the national median of $69,021. The median age of people living in Illinois City is 70.4 years.
The average high temperature in July is 85.1 degrees, with an average low temperature in January of 14.6 degrees. The average rainfall is approximately 36.9 inches per year, with 28.4 inches of snow per year.
