Collinsville is located in Illinois.
Collinsville, Illinois has a population of
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
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
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.