South Wilmington, IL
Population 558 · Illinois
About South Wilmington, IL
South Wilmington is a small community in Illinois with a population of 558 residents. The median household income is $86,563 per year, which is above the national average. The median age in South Wilmington is 46.3 years.
Housing in South Wilmington has a median home value of $164,900 and median monthly rent of $1,188. Of the 259 total housing units, the majority are owner-occupied, with 214 owner-occupied and 19 renter-occupied units.
The unemployment rate in South Wilmington is 4.9% and the poverty rate is 6.5%. 12.8% of residents hold a bachelor's degree or higher. The average commute time is 32.1 minutes.
Cost of Living in South Wilmington, IL
Compared to national averages, South Wilmington has a median household income of $86,563 (15% above the national median of $75,149). Home values average $164,900, which is 33% below the national median. Monthly rent at $1,188 is 2% above the US average of $1,163. Within Illinois, South Wilmington's income is 15% above the state average of $75,072, and home values are 1% below the state median of $165,779.
Why Live in South Wilmington, IL?
South Wilmington offers a strong local economy with a median household income of $86,563, well above the national average, and affordable housing with a median home value of $164,900, below the US average of $244,900, and a low poverty rate of 6.5%, better than the national average.
South Wilmington has a population of 558 with a median age of 46.3 years. Compare South Wilmington with other cities to see how it stacks up, or explore all cities in Illinois.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about South Wilmington
What is the population of South Wilmington, IL?
The population of South Wilmington, IL is 558 according to the latest Census data.
What is the median household income in South Wilmington?
The median household income in South Wilmington, IL is $86,563 per year.
What is the median home value in South Wilmington?
The median home value in South Wilmington, IL is $164,900.
What is the average rent in South Wilmington?
The median monthly rent in South Wilmington, IL is $1,188.
What is the unemployment rate in South Wilmington?
The unemployment rate in South Wilmington, IL is 4.9%.