In 2019, De Witt County, IL had a population of 15.9k people with a median age of 43.6 and a median household income of $55,587. Between 2018 and 2019 the population of De Witt County, IL declined from 16,042 to 15,932, a −0.686% decrease and its median household income declined from $55,591 to $55,587, a −0.0072% decrease.
The 5 largest ethnic groups in De Witt County, IL are White (Non-Hispanic) (94.6%), Two+ (Non-Hispanic) (1.96%), White (Hispanic) (1.45%), Other (Hispanic) (1.29%), and Black or African American (Non-Hispanic) (0.534%). 0% of the households in De Witt County, IL speak a non-English language at home as their primary language, and 98.9% of the residents in De Witt County, IL are U.S. citizens.
In 2019, the median property value in De Witt County, IL was $99,500, and the homeownership rate was 78.7%. Most people in De Witt County, IL drove alone to work, and the average commute time was 20.3 minutes. The average car ownership in De Witt County, IL was 2 cars per household.