South Wilmington, IL demographics:
population, income, and more

Total population
600
7.5% year-over-year change
Median household income
$86,750/yr
0.2% year-over-year change
Housing units
283
9.3% year-over-year change

South Wilmington population

How many people live in South Wilmington

South Wilmington is home to 600 residents, according to the most recent Census data. Gender-wise, 53.5% of South Wilmington locals are male, and 46.5% are female.

Total population
600
7.5% year-over-year change
Gender ratio
Male
53.5%
321
Female
46.5%
279
Value Percent YoY change
Male 321 53.5% 11.5%
Female 279 46.5% 3.3%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in South Wilmington is 43, with the population distributed as follows: about 16.7% are children under 15, then 8% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.8% of the population, while another 31% fall into the 45 to 64 bracket. Finally, around 18.5% are 65 or older.

Median age
43
Age breakdown
Under 15
16.7%
15 to 24
8%
25 to 44
25.8%
45 to 64
31%
Over 65
18.5%
Value Percent YoY change
Under 15 100 16.7% -8.3%
15 to 24 48 8% 11.6%
25 to 44 155 25.8% 26.0%
45 to 64 186 31% 9.4%
Over 65 111 18.5% -1.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In South Wilmington, 97.3% of the population are US-born citizens, while 2.7% have gained naturalized citizenship. There’s also a share of 0.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.3%
Non-U.S.-born citizens
2.7%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 584 97.3% 5.0%
Non-U.S.-born citizens 16 2.7% 700.0%
Racial breakdown
White
98.5%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0.7%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0.8%
Other
0%
Value Percent
White 591 98.5%
Asian 4 0.7%
Two or more races 5 0.8%

Households in South Wilmington

A peek inside South Wilmington households

South Wilmington has 269 households, with an average of 2 members in each. Of these, 62.4% are families, while the remaining 37.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
269
15.4% year-over-year change
Average people per household
2
Non-family households
101
Family households
168
Value Percent YoY change
Non-family households 101 37.6% 32.9%
Family households 168 62.4% 7.0%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in South Wilmington

The housing landscape of South Wilmington

South Wilmington's housing consists of 283 units, with 94.7% being detached single-family homes ideal for those wanting space.

Housing units
283
9.3% year-over-year change
Housing types
Value Percent
1 unit, detached 268 94.7%
2 units 14 5%
Boat, RV, van, etc. 1 0.4%
Homes built since 2020
3
50.0% year-over-year change

The age of buildings in South Wilmington

In South Wilmington, the median construction year is 1959. About 29.7% of homes were built before the 1940s, with another 8.8% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 84 29.7% 86.7%
Built between 1940 and 1949 25 8.8% -16.7%
Built between 1950 and 1959 38 13.4% 0.0%
Built between 1960 and 1969 56 19.8% -9.7%
Built between 1970 and 1979 12 4.2% -52.0%
Built between 1980 and 1989 15 5.3% 15.4%
Built between 1990 and 1999 22 7.8% 10.0%
Built between 2000 and 2009 28 9.9% 16.7%
Built in 2020 or later 3 1.1% 50.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

South Wilmington occupancy rates

Out of the 269 occupied housing units in South Wilmington, 90% are owner-occupied, while 10% are lived in by tenants. Meanwhile, 4.9% of all homes on the local market sit vacant.

Occupied housing units
269
15.4% year-over-year change
Occupancy breakdown
Renter occupied
27
Owner occupied
242
Value Percent YoY
change
Renter occupied 27 10% 42.1%
Owner occupied 242 90% 13.1%
Unoccupied housing units
4.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

South Wilmington housing costs

Housing costs in South Wilmington come to a median of $1,068 per month, while tenants specifically pay a median gross rent of $1,277.

Median housing costs per month
$1,068/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in South Wilmington
$1,277/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in South Wilmington

South Wilmington education at a glance

About 54.5% of the population in South Wilmington went to high school, while 22.8% pursued college studies. Another 8.8% earned an associate degree and 8.6% hold a bachelor’s. Meanwhile, 3.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 8 1.7% 60.0%
High school diploma 261 54.5% 10.6%
College diploma 109 22.8% 0.9%
Associate degree 42 8.8% 55.6%
Bachelor's degree 41 8.6% 17.1%
Graduate degree 18 3.8% 5.9%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in South Wilmington

How much people earn in South Wilmington

The average annual household income in South Wilmington was $102,263 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.8% change from the previous year. At the same time, the median income stood at $86,750, reflecting a +0.2% shift over the same period.

Average household income in South Wilmington
$102,263/year
2.8% year-over-year change
Median household income in South Wilmington
$86,750/year
0.2% year-over-year change

South Wilmington income by age

In South Wilmington, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $109,583. Those with someone between 45 and 64 in charge, often well established professionally, earn $93,125 overall. Overall, 94.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $109,583 27.1%
45 - 64 $93,125 -13.4%
Over 65 $55,000 -3.3%
Above poverty level
562
Below poverty level
34
Value Percent YoY
change
Above poverty level 562 94.3% 8.1%
Below poverty level 34 5.7% -5.6%

Average renter income in South Wilmington

To get a better sense of what renters earn on average in South Wilmington, their median household income was $49,500 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 31%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$49,500
Rent-to-income ratio
31%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in South Wilmington

Workforce and job types in South Wilmington

The job market in South Wilmington is powered by 280 working residents, spread across a range of industries and roles. 50.7% of the working population are employed in professional or administrative positions, while 49.3% are in hands-on or service-based jobs. Also, 10.4% run their own businesses, 66.8% are employed by private companies, and 18.2% work in the public sector.

Workforce demographics

Working population
280
20.7% year-over-year change
White collar
142
Blue collar
138
Value Percent YoY change
White collar 142 50.7% 10.9%
Blue collar 138 49.3% 32.7%
Employer type
Self employees
10.4%
Private companies
66.8%
Governmental workers
18.2%
Not for profit companies
4.6%
Value Percent YoY change
Self employees 29 10.4% 107.1%
Private companies 187 66.8% 11.3%
Governmental workers 51 18.2% 45.7%
Not for profit companies 13 4.6% -13.3%
Unemployment rate
4.1%
0.0% year-over-year change

Available workforce

The unemployment rate in South Wilmington stands at 4.1%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in South Wilmington

How people get around in South Wilmington

Means of transportation
Value Percent YoY change
Car 254 95.5% 22.1%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in South Wilmington by zipcode?

Zipcode Population Number of households Median income Average income
60474 663 308 $85,500 $101,289

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FAQs about South Wilmington demographics 

What is the total population of South Wilmington?

South Wilmington has a total population of 600 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +7.5% compared to a year ago.

What is the gender ratio in South Wilmington?

The gender ratio in South Wilmington is as follows:
  • 53.5% males (321 residents)
  • 46.5% females (279 residents)

What is the median age in South Wilmington?

The median age in South Wilmington is 43.

What is the age distribution of the population in South Wilmington?

The age distribution in South Wilmington is as follows:
  • Under 15: 16.7% (100 residents)
  • Ages 15-24: 8% (48 residents)
  • Ages 25-44: 25.8% (155 residents)
  • Ages 45-64: 31% (186 residents)
  • Over 65: 18.5% (111 residents)

What is the racial and ethnic makeup of South Wilmington?

The racial and ethnic makeup of South Wilmington is as follows:
  • White: 98.5% (591 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.7% (4 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 0.8% (5 residents)
  • Other: 0% (0 residents)

What percentage of the population in South Wilmington are U.S.-born citizens?

U.S.-born citizens represent 97.3% of the population in South Wilmington.

How many housing units are there in South Wilmington?

There are 283 housing units in South Wilmington, reflecting a +9.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in South Wilmington and what is the average household size?

South Wilmington has a total of 269 households, with an average of 2 people in each.

What is the median household income in South Wilmington?

South Wilmington has a median household income of $86,750, representing a +0.2% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for South Wilmington?

The employment rate is 95.9% in South Wilmington, with a workforce of 280 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 50.7% (142 residents)
  • Blue-collar workers: 49.3% (138 residents)

Places of employment:
  • Self-employed: 10.4% (29 residents)
  • Private companies: 66.8% (187 residents)
  • Governmental workers: 18.2% (51 residents)
  • Not-for-profit companies: 4.6% (13 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025