In 2017, Warren County, IL had a population of 17.4k people with a median age of 39.1 and a median household income of $47,278. Between 2016 and 2017 the population of Warren County, IL declined from 17,611 to 17,429, a -1.03% decrease and its median household income grew from $44,067 to $47,278, a 7.29% increase.
The population of Warren County, IL is 84.4% White Alone, 9.24% Hispanic or Latino, and 2.76% Black or African American Alone. 10.3% of the people in Warren County, IL speak a non-English language, and 95.7% are U.S. citizens.
The largest universities in Warren County, IL are Monmouth College (275 degrees awarded in 2016).
The median property value in Warren County, IL is $83,900, and the homeownership rate is 74.7%. Most people in Warren County, IL commute by Drove Alone, and the average commute time is 17 minutes. The average car ownership in Warren County, IL is 2 cars per household.