In 2023, Washington County, IL had a population of 13.7k people with a median age of 44.2 and a median household income of $75,652. Between 2022 and 2023 the population of Washington County, IL declined from 13,781 to 13,682, a −0.718% decrease and its median household income grew from $75,111 to $75,652, a 0.72% increase.
The 5 largest ethnic groups in Washington County, IL are White (Non-Hispanic) (95.1%), Two+ (Non-Hispanic) (2.59%), White (Hispanic) (0.534%), Black or African American (Non-Hispanic) (0.482%), and Two+ (Hispanic) (0.402%).
None of the households in Washington County, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.7% of the residents in Washington County, IL are U.S. citizens.
In 2023, the median property value in Washington County, IL was $149,800, and the homeownership rate was 81.2%.
Most people in Washington County, IL drove alone to work, and the average commute time was 25.8 minutes. The average car ownership in Washington County, IL was 2 cars per household.
Washington County, IL borders Clinton County, IL, Jefferson County, IL, Marion County, IL, Perry County, IL, Randolph County, IL, and St. Clair County, IL.