Real Estate in Collinsville, IL
Collinsville is located in Illinois. Collinsville, Illinois has a population of 25,579. Collinsville is less family-centric than the surrounding county with 26.29% of the households containing married families with children. The county average for households married with children is 28.46%.
The median household income in Collinsville, Illinois is $48,949. The median household income for the surrounding county is $49,948 compared to the national median of $50,935. The median age of people living in Collinsville is 36.5 years.
The average high temperature in July is 89 degrees, with an average low temperature in January of 24.5 degrees. The average rainfall is approximately 39.8 inches per year, with 15.5 inches of snow per year.
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