South Wilmington, IL
Population 558 · Illinois
About South Wilmington, IL
South Wilmington is a small community located in Illinois with a population of 558 residents according to the latest US Census Bureau American Community Survey data. The median household income is $86,563 per year, which is 15% above the national median of $75,149. The median age of 46.3 years is notably older the US median age of 38.9 years, suggesting a more established community with a higher proportion of long-term residents.
Housing Market Overview
The housing market in South Wilmington features a median home value of $164,900, which is 33% below the national median of $244,900. This positions South Wilmington in a moderately priced market relative to the rest of the country. Median monthly rent is $1,188, 2% above the national average of $1,163/month. Of the 259 total housing units, 92% are owner-occupied (214 units) and 8% are renter-occupied (19 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in South Wilmington shows an unemployment rate of 4.9%, which is near the national rate of 3.7%. The poverty rate stands at 6.5%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in South Wilmington have an average one-way commute time of 32.1 minutes.
Education & Demographics
12.8% of South Wilmington residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The lower educational attainment rate may reflect the area's industry mix, with more employment in trades, manufacturing, or agricultural sectors. The community's demographic composition includes 2.0% White, 0.7% Hispanic or Latino, 0.0% Black or African American, and 0.0% Asian residents, with 0.4% of the population being foreign-born.
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 US Census Bureau American Community Survey estimates. This makes it a small community in Illinois.
What is the median household income in South Wilmington?
The median household income in South Wilmington, IL is $86,563 per year, which is 15% above the national median of $75,149.
What is the median home value in South Wilmington?
The median home value in South Wilmington, IL is $164,900, which is 33% below the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in South Wilmington?
The median monthly rent in South Wilmington, IL is $1,188, which is 2% above the national average of $1,163/month.
What is the unemployment rate in South Wilmington?
The unemployment rate in South Wilmington, IL is 4.9%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is South Wilmington, IL a good place to live?
South Wilmington offers above-average incomes, affordable housing, and growing employment opportunities. With a population of 558 and a median age of 46.3, the city appeals to established professionals and retirees.
How educated is South Wilmington, IL?
12.8% of residents in South Wilmington aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The educational profile reflects the area's industry mix and employment landscape.
What is the cost of living in South Wilmington?
Key cost-of-living indicators for South Wilmington, IL: median home value is $164,900 (33% below national), median rent is $1,188/month, and median household income is $86,563. The home-value-to-income ratio is 1.9x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in South Wilmington?
The poverty rate in South Wilmington, IL is 6.5%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is South Wilmington, IL?
South Wilmington's population is 2.0% White, 0.7% Hispanic or Latino, 0.0% Black or African American, 0.0% Asian, and 0.0% two or more races. 0.4% of residents are foreign-born.