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CITY

South Wilmington

Illinois · 719 residents (2025 est.) · 0.492 sq mi
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The short version

South Wilmington has roughly average household income, with a median household income of $86,750. Population has declined 3% since 2000. 13% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $174,400. Poverty is rare here, at 5.7% of residents.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 43.0
US median: 38.9
Less educated
13% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
600
−3%since 2000
from 621 in 2000
1990 – 2025
Population density
1,220 / sq mi
−3%since 2000
from 1,262 / sq mi in 2000
US average: 281
Median age
43.0
+8%since 2000
from 39.8 in 2000
US average: 38.9

PEP 2025 EST:719 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
5236297358409461990201020202024South Wilmington
2024600
1990201020202024
Section 02

Income & economy

Median household income
$86,750
+20%inflation adjusted, since 2000
from $39,688 in 2000
US average: $82,259
1990 – 2024
Per capita income
$45,772
+140%since 2000
from $19,078 in 2000
US average: $44,673
Households earning $100K+
60.2%
+22.9 ptssince 2009
from 37.4% in 2009
US average: 53.3%
Poverty rate
5.7%
−2.2 ptssince 2000
from 7.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.355
+24%since 2010
from 0.287 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade17.1%
US avg: 9.9%
Information16.4%
US avg: 10.8%
Wholesale trade15.7%
US avg: 6.9%
Finance & insurance5%
US avg: 5.9%
Professional, scientific, technical4.3%
US avg: 5.1%
Agriculture, forestry, fishing2.5%
US avg: 1.6%
Construction2.5%
US avg: 1.2%
Other services2.5%
US avg: 6.7%
Public administration1.4%
US avg: 4.8%
Arts, entertainment, food1.1%
US avg: 1.9%
Education & health services0.7%
US avg: 0.9%
Manufacturing0%
US avg: 0.4%
Transportation & warehousing0%
US avg: 2.2%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$174,400
+7%inflation adjusted, since 2000
from $89,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,277
+8%inflation adjusted, since 2000
from $650 in 2000
US average: $1,442
Owner-occupied
90.0%
+5.3 ptssince 2000
from 84.6% in 2000
10.0% rent
Vacancy rate
4.9%
−4.2 ptssince 2009
from 9.2% in 2009
US average: 10.0%
Owner cost-burdened
16.1%
+1.9 ptssince 2009
from 14.2% in 2009
US average: 22.9%
Renter cost-burdened
3.7%
−13.7 ptssince 2009
from 17.4% in 2009
US average: 47.4%
Afford Score
2.0
−11%since 2000
from 2.3 in 2000
1990 – 2024
Gentrification Score
42
RELATED:See current rent listings in South Wilmington on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic96.9%(602)
Black0%(0)
Hispanic / Latino2.4%(15)
Asian0%(0)
Other0%
Diversity Score5.9%(37)
2024
White, non-Hispanic94.7%(568)
Black0%(0)
Hispanic / Latino3.8%(23)
Asian0.7%(4)
Other0.8%(5)
Diversity Score12.8%(77)
Diversity Score
13
+116%since 2000
from 6 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
13.1%
+6.5 ptssince 2000
from 6.6% in 2000
US average: 35.6%
High school or higher
91.2%
+8.1 ptssince 2000
from 83.1% in 2000
US average: 89.6%
Graduate degree
4.0%
+2.3 ptssince 2000
from 1.6% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
31.9 min
+50%since 2000
from 21.2 min in 2000
US average: 26.5
Drive alone to work
94.0%
+6.4 ptssince 2009
from 87.5% in 2009
US average: 68.9%
Carpooled to work
1.5%
−8.5 ptssince 2009
from 10.0% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
3.8%
+3.8 ptssince 2009
from 0.0% in 2009
US average: 15.0%
Walked to work
0.0%
−2.4 ptssince 2009
from 2.4% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
3.7%
+2.6 ptssince 2009
from 1.2% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.1%
−0.3 ptssince 2011
from 4.4% in 2011
US average: 5.2%
Labor force participation
59.7%
−7.2 ptssince 2011
from 66.9% in 2011
US average: 63.5%
Self-employed
17.1%
+4.7 ptssince 2009
from 12.5% in 2009
US average: 13.1%
Management & professional
27.5%
−17.6 ptssince 2009
from 45.1% in 2009
US average: 42.5%
Section 08

People & community

Male
53.5%
+1.3 ptssince 2009
from 52.2% in 2009
Female
46.5%
−1.3 ptssince 2009
from 47.8% in 2009
Foreign born
2.7%
+2.4 ptssince 2009
from 0.3% in 2009
US average: 14.1%
Veterans
6.1%
−47.7 ptssince 2009
from 53.8% in 2009
US average: 6.2%
With a disability
16.8%
+9.5 ptssince 2012
from 7.3% in 2012
US average: 13.3%
Uninsured
7.7%
−77.9 ptssince 2013
from 85.6% in 2013
US average: 8.4%
Broadband at home
88.1%
+6.8 ptssince 2017
from 81.3% in 2017
US average: 91.0%
English only at home
95.7%
−3.1 ptssince 2016
from 98.8% in 2016
US average: 77.7%
Spanish at home
0.7%
−0.2 ptssince 2016
from 0.9% in 2016
US average: 13.6%
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SOUTH WILMINGTON VS
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SOUTH WILMINGTON VS
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SOUTH WILMINGTON VS
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Frequently asked

How many people live in South Wilmington, Illinois?

South Wilmington, Illinois has about 600 residents according to the 2024 American Community Survey.

What is the median household income in South Wilmington, Illinois?

The typical household in South Wilmington, Illinois earns about $86,750 a year. Half of households make more than that, and half make less.

Is South Wilmington, Illinois expensive?

In South Wilmington, Illinois, the median home is worth about $174,400, and the typical rent is about $1,277 a month.

How educated are people in South Wilmington, Illinois?

About 13.1% of adults age 25 and over in South Wilmington, Illinois hold a bachelor's degree or higher.

What is the poverty rate in South Wilmington, Illinois?

About 5.7% of people in South Wilmington, Illinois live below the federal poverty line.

Has South Wilmington, Illinois grown since 1990?

Yes, South Wilmington, Illinois has shrunk since 1990. The population has lost about 76 residents, a change of about -11 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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