In 2017, Piatt County, IL had a population of 16.4k people with a median age of 43 and a median household income of $67,360. Between 2016 and 2017 the population of Piatt County, IL declined from 16,469 to 16,433, a -0.219% decrease and its median household income declined from $69,160 to $67,360, a -2.6% decrease.
The 5 largest ethnic groups in Piatt County, IL are White (Non-Hispanic) (92.7%), Two or More Races (Non-Hispanic) (4.27%), Black or African American (Non-Hispanic) (1.06%), White (Hispanic) (0.809%), and Two or More Races (Hispanic) (0.426%). N/A% of the people in Piatt County, IL speak a non-English language, and 99.3% are U.S. citizens.
The median property value in Piatt County, IL is $128,100, and the homeownership rate is 81.7%. Most people in Piatt County, IL commute by Drove Alone, and the average commute time is 22.4 minutes. The average car ownership in Piatt County, IL is 2 cars per household.