In 2017, Cook County, IL had a population of 5.21M people with a median age of 36.8 and a median household income of $61,405. Between 2016 and 2017 the population of Cook County, IL grew from 5.2M to 5.21M, a 0.149% increase and its median household income grew from $60,046 to $61,405, a 2.26% increase.
The population of Cook County, IL is 42.2% White Alone, 25.5% Hispanic or Latino, and 23.1% Black or African American Alone. 35.6% of the people in Cook County, IL speak a non-English language, and 89.5% are U.S. citizens.
The median property value in Cook County, IL is $247,600, and the homeownership rate is 56.4%. Most people in Cook County, IL commute by Drove Alone, and the average commute time is 31.8 minutes. The average car ownership in Cook County, IL is 2 cars per household.