In 2018, Piatt County, IL had a population of 16.4k people with a median age of 43 and a median household income of $69,271. Between 2017 and 2018 the population of Piatt County, IL declined from 16,433 to 16,427, a -0.0365% decrease and its median household income grew from $67,360 to $69,271, a 2.84% increase.
The 5 largest ethnic groups in Piatt County, IL are White (Non-Hispanic) (96.3%), Two+ (Non-Hispanic) (1.13%), White (Hispanic) (0.785%), Black or African American (Non-Hispanic) (0.548%), and Two+ (Hispanic) (0.475%). NaNk% of the people in Piatt County, IL speak a non-English language, and 99.4% are U.S. citizens.
The median property value in Piatt County, IL is $130,300, and the homeownership rate is 81.8%. Most people in Piatt County, IL commute by Drove Alone, and the average commute time is 22 minutes. The average car ownership in Piatt County, IL is 2 cars per household.