Wonder Lake is located in Illinois. Wonder Lake, Illinois has a population of 4,218. Wonder Lake is less family-centric than the surrounding county with 31% households with children. The county percentage for households with children is 33%.
The median household income in Wonder Lake, Illinois is $76,181. The median household income for the surrounding county is $87,114 compared to the national median of $66,222. The median age of people living in Wonder Lake is 41 years.
The average high temperature in July is 85.14 degrees, with an average low temperature in January of 11.54 degrees. The annual precipitation is 33.71.