Brookfield is located in Illinois. Brookfield, Illinois has a population of 18,220. Brookfield is more family-centric than the surrounding county with 34% households with children. The county percentage for households with children is 26%.
The median household income in Brookfield, Illinois is $81,505. The median household income for the surrounding county is $63,917 compared to the national median of $61,963. The median age of people living in Brookfield is 41.9 years.
The average high temperature in July is 84.7 degrees, with an average low temperature in January of 16.2 degrees. The annual precipitation is 38.35.