Streamwood is located in Illinois. Streamwood, Illinois has a population of 40,615. Streamwood is more family-centric than the surrounding county with 33.39% of the households containing married families with children. The county average for households married with children is 30.49%.
The median household income in Streamwood, Illinois is $80,152. The median household income for the surrounding county is $59,426 compared to the national median of $57,652. The median age of people living in Streamwood is 38 years.
The average high temperature in July is 86.7 degrees, with an average low temperature in January of 10.6 degrees. The average rainfall is approximately 37.7 inches per year, with 34.3 inches of snow per year.