Round Lake Park is located in Illinois. Round Lake Park, Illinois has a population of 8,203. Round Lake Park is less family-centric than the surrounding county with 33.03% of the households containing married families with children. The county average for households married with children is 38.63%.
The median household income in Round Lake Park, Illinois is $46,196. The median household income for the surrounding county is $82,613 compared to the national median of $57,652. The median age of people living in Round Lake Park is 40.2 years.
The average high temperature in July is 81.7 degrees, with an average low temperature in January of 14.6 degrees. The average rainfall is approximately 36.2 inches per year, with 39.5 inches of snow per year.
