In 2019, Union County, IL had a population of 17k people with a median age of 43.7 and a median household income of $50,625. Between 2018 and 2019 the population of Union County, IL declined from 17,127 to 16,968, a −0.928% decrease and its median household income grew from $49,182 to $50,625, a 2.93% increase.
The 5 largest ethnic groups in Union County, IL are White (Non-Hispanic) (91.1%), White (Hispanic) (3.01%), Black or African American (Non-Hispanic) (1.61%), Two+ (Non-Hispanic) (1.4%), and Other (Hispanic) (1.11%). 0% of the households in Union County, IL speak a non-English language at home as their primary language.
98.5% of the residents in Union County, IL are U.S. citizens.
In 2019, the median property value in Union County, IL was $109,900, and the homeownership rate was 77.3%. Most people in Union County, IL drove alone to work, and the average commute time was 23.6 minutes. The average car ownership in Union County, IL was 2 cars per household.