In 2023, South Wilmington, IL had a population of 558 people with a median age of 46.3 and a median household income of $86,563. Between 2022 and 2023 the population of South Wilmington, IL declined from 624 to 558, a −10.6% decrease and its median household income declined from $89,063 to $86,563, a −2.81% decrease.
The 5 largest ethnic groups in South Wilmington, IL are White (Non-Hispanic) (96.6%), White (Hispanic) (1.97%), Two+ (Non-Hispanic) (1.08%), Asian (Non-Hispanic) (0.358%), and Black or African American (Non-Hispanic) (0%).
None of the households in South Wilmington, 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.
100% of the residents in South Wilmington, IL are U.S. citizens.
In 2023, the median property value in South Wilmington, IL was $164,900, and the homeownership rate was 91.8%.
Most people in South Wilmington, IL drove alone to work, and the average commute time was 32.1 minutes. The average car ownership in South Wilmington, IL was 2 cars per household.