South Wilmington

Population: 558
Median household income: $86,563
Median home value: $164,900

South Wilmington is a community in Grundy County, Illinois, home to 558 residents. Its median household income of $86,563 runs below the Grundy County figure of $93,060.

Between 2019 and 2023, South Wilmington's population declined 26.7% from 761 to 558, while its median home value rose 29.0% from $127,800 to $164,900.

12.8% of adults 25 and older hold a bachelor's degree or higher. Owners occupy 91.8% of the area's occupied homes.

Demographics

ACS 2019–2023

Population: 558
Median age: 46.3 yrs
Median household income: $86,563
Median home value: $164,900
Median gross rent: $1,188
Housing units: 259
Homeownership rate: 91.8%
Bachelor's degree or higher: 12.8%
Unemployment rate: 4.9%

Trends

ACS 5-year · 2019–2023

Population

761558

Median household income

$75,417$86,563

Median home value

$127,800$164,900

Median gross rent

$925$1,188

Year	Population	Median household income	Median home value	Median gross rent
2019	761	$75,417	$127,800	$925
2020	702	$75,156	$131,600	$963
2021	643	$76,667	$142,300	$1,000
2022	624	$89,063	$154,800	$1,139
2023	558	$86,563	$164,900	$1,188

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 56.8%

5 to 1716.5%

18 to 243.9%

25 to 3414.3%

35 to 447.7%

45 to 5413.1%

55 to 6417.4%

65 to 748.8%

75 and over11.5%

	Count	Share
Under 5	38	6.8%
5 to 17	92	16.5%
18 to 24	22	3.9%
25 to 34	80	14.3%
35 to 44	43	7.7%
45 to 54	73	13.1%
55 to 64	97	17.4%
65 to 74	49	8.8%
75 and over	64	11.5%

Race & ethnicity

	Count	Share
White (non-Hispanic)	539	96.6%
Black or African American	0	0.0%
American Indian & Alaska Native	0	0.0%
Asian	2	0.4%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	6	1.1%
Hispanic or Latino (any race)	11	2.0%

Educational attainment (age 25+)

No high school diploma8.9%

High school graduate47.8%

Some college or associate's30.5%

Bachelor's degree8.6%

Graduate or professional degree4.2%

	Count	Share
No high school diploma	36	8.9%
High school graduate	194	47.8%
Some college or associate's	124	30.5%
Bachelor's degree	35	8.6%
Graduate or professional degree	17	4.2%

Commute to work

Mean travel time to work: 32 min

Drove alone94.0%

Carpooled1.4%

Public transit0.0%

Walked0.0%

Bicycle0.0%

Worked from home4.6%

Other means0.0%

How workers get to work

	Count	Share
Drove alone	205	94.0%
Carpooled	3	1.4%
Public transit	0	0.0%
Walked	0	0.0%
Bicycle	0	0.0%
Worked from home	10	4.6%
Other means	0	0.0%

Travel time

	Count	Share
Under 15 min	21	10.1%
15 to 29 min	67	32.2%
30 to 44 min	72	34.6%
45 to 59 min	28	13.5%
60+ min	20	9.6%

Households

Average household size: 2.39
Poverty rate: 6.5% (36 of 558)

	Count	Share
Family households	157	67.4%
Nonfamily households	76	32.6%

Housing

Median year structure built: 1963

Occupancy

	Count	Share
Occupied	233	90.0%
Vacant	26	10.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	214	91.8%
Renter-occupied	19	8.2%

1-unit, detached99.6%

1-unit, attached0.0%

2 to 4 units0.0%

5 to 19 units0.0%

20 or more units0.0%

Mobile home & other0.4%

Units in structure

	Count	Share
1-unit, detached	258	99.6%
1-unit, attached	0	0.0%
2 to 4 units	0	0.0%
5 to 19 units	0	0.0%
20 or more units	0	0.0%
Mobile home & other	1	0.4%

Geography

Place GEOID: 1771370
Type (LSAD): 47
Land area: 0.49 sq mi
Water area: 0 sq mi
Center point: 41.1745, -88.2795