Northbrook is located in Illinois. Northbrook, Illinois has a population of 35,108. Northbrook is more family-centric than the surrounding county with 33.54% of the households containing married families with children. The county average for households married with children is 29.73%.
The median household income in Northbrook, Illinois is $143,506. The median household income for the surrounding county is $72,121 compared to the national median of $69,021. The median age of people living in Northbrook is 49 years.
The average high temperature in July is 83.1 degrees, with an average low temperature in January of 16.7 degrees. The average rainfall is approximately 36.3 inches per year, with 36 inches of snow per year.
