Marion County, IL has a population of 38,503 people with a median age of 41.6 and a median household income of $43,427. Between 2015 and 2016 the population of Marion County, IL declined from 38,665 to 38,503, a 0.42% decrease and its median household income grew from $42,238 to $43,427, a 2.82% increase.
The population of Marion County, IL is 91.7% White, 3.52% Black, and 1.93% Two+. 2.51% of the people in Marion County, IL speak a non-English language, and 99% are U.S. citizens.
The largest universities in Marion County, IL are Rend Lake College, with 1,390 graduates, Career Center of Southern Illinois, with 69 graduates, and Creative Touch Cosmetology School, with 6 graduates.
The median property value in Marion County, IL is $72,000, and the homeownership rate is 74.9%. Most people in Marion County, IL commute by Drove Alone, and the average commute time is 20.4 minutes. The average car ownership in Marion County, IL is 2 cars per household.
Marion County, IL is the 36th most populated county in Illinois and borders Clay County, IL; Clinton County, IL; Fayette County, IL; Jefferson County, IL; Washington County, IL; and Wayne County, IL& 1 more.