St Charles is located in Illinois. St Charles, Illinois has a population of 32,908. St Charles is less family-centric than the surrounding county with 34.09% of the households containing married families with children. The county average for households married with children is 36.28%.
The median household income in St Charles, Illinois is $106,069. The median household income for the surrounding county is $88,935 compared to the national median of $69,021. The median age of people living in St Charles is 42.2 years.
The average high temperature in July is 84.5 degrees, with an average low temperature in January of 14.7 degrees. The average rainfall is approximately 37.7 inches per year, with 30.1 inches of snow per year.
