Cottage Hills is located in Illinois. Cottage Hills, Illinois has population of 3,484. Cottage Hills is more family-centric than the surrounding county with 33% of the households with children.
The median household income in Cottage Hills, Illinois is $50,724. The median household income for the surrounding county is $63,321 compared to the national median of $66,222. The median age of people living in Cottage Hills is 39.4 years.
The average high temperature in July is 88.1 degrees, with an average low temperature in January of 19.4 degrees. The annual precipitation is 38.54.