Clay County, IL has a population of 13,466 people with a median age of 43.1 and a median household income of $45,984. Between 2015 and 2016 the population of Clay County, IL declined from 13,582 to 13,466, a 0.85% decrease and its median household income grew from $44,209 to $45,984, a 4.02% increase.
The population of Clay County, IL is 96.5% White, 1.35% Hispanic, and 1.11% Two+. 3.35% of the people in Clay County, IL speak a non-English language, and 99% are U.S. citizens.
The largest universities in Clay County, IL are Olney Central College, with 453 graduates, Frontier Community College, with 356 graduates, and Lincoln Trail College, with 234 graduates.
The median property value in Clay County, IL is $76,500, and the homeownership rate is 77.6%. Most people in Clay County, IL commute by Drove Alone, and the average commute time is 19.3 minutes. The average car ownership in Clay County, IL is 2 cars per household.
Clay County, IL is the 80th most populated county in Illinois and borders Effingham County, IL; Fayette County, IL; Jasper County, IL; Marion County, IL; Richland County, IL; and Wayne County, IL& 1 more.