What kinds of homes are in South Wilmington, IL?

Name: Types of homes in South Wilmington, IL, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

South Wilmington, IL has 283 (±48) homes (2020–2024 American Community Survey).

That is about 575 homes per square mile of land.

94.7% are detached single-family houses.

4.9% are in buildings of two to four units.

0.0% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 283 (±48)
Detached houses: 94.7%
2–4 unit buildings: 4.9%
5+ unit buildings: 0.0%

Homes in South Wilmington by building size

Housing units by units in structure, 2020–2024
Building type	South Wilmington	Grundy County	Illinois	United States
Single-family, detached	94.7% (±6.4 points)	71.8%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	0.0% (±12.4 points)	9.4%	6.1%	6.2%
2 units	4.9% (±6.4 points)	1.8%	5.2%	3.4%
3 or 4 units	0.0% (±12.4 points)	5.7%	6.4%	4.3%
5 to 9 units	0.0% (±12.4 points)	2.2%	6.3%	4.5%
10 to 19 units	0.0% (±12.4 points)	3.0%	4.0%	4.3%
20 or more units	0.0% (±12.4 points)	2.1%	11.5%	10.3%
Mobile home	0.0% (±12.4 points)	3.9%	2.3%	5.6%
Boat, RV, van, etc.	0.4% (±0.7 points)	0.0%	0.0%	0.1%

In South Wilmington, the share of homes in buildings of five or more units is not measurably different from Grundy County (7.3%).

It is also lower than in Illinois (21.8%).

It is not measurably different from the national figure (19.1%).

Homes in buildings of 5 or more units in places near South Wilmington

Nearest places with a published estimate, compared with South Wilmington
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
South Wilmington	—	0.0% (±21.5 points)	—
East Brooklyn	0.7 mi	0.0% (±92.0 points)	Not measurably different
Greenfield Township	1.8 mi	0.0% (±13.9 points)	Not measurably different
Gardner	2.2 mi	3.8% (±7.4 points)	Not measurably different
Garfield Township	3.1 mi	3.5% (±6.9 points)	Not measurably different
Braceville	3.6 mi	0.0% (±20.3 points)	Not measurably different
Essex	4.6 mi	0.0% (±16.8 points)	Not measurably different
Braceville Township	4.8 mi	2.9% (±3.1 points)	Not measurably different
Godley	5.2 mi	1.1% (±18.6 points)	Not measurably different

None of the nearby places differs measurably from this one on this figure.

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Grundy County, place by place

Rank	Place	Homes in buildings of 5 or more units
13 (tie)	Mazon	0.6% (±9.5 points)
15	Mazon Township	0.5% (±8.1 points)
16 (tie)	Braceville	0.0% (±20.3 points)
16 (tie)	East Brooklyn	0.0% (±92.0 points)
16 (tie)	Kinsman	0.0% (±79.7 points)
16 (tie)	Minooka	0.0% (±1.3 points)
16 (tie)	South Wilmington	0.0% (±21.5 points)
16 (tie)	Verona	0.0% (±41.9 points)
16 (tie)	Goodfarm Township	0.0% (±61.1 points)
16 (tie)	Goose Lake Township	0.0% (±10.9 points)
16 (tie)	Greenfield Township	0.0% (±13.9 points)
16 (tie)	Highland Township	0.0% (±50.9 points)
16 (tie)	Maine Township (Grundy County)	0.0% (±48.8 points)

Showing 13 of 29 places in Grundy County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about South Wilmington

How many homes are in South Wilmington?

South Wilmington, IL has an estimated 283 (±48) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in South Wilmington houses or apartments?

94.7% are detached houses and 0.0% attached houses, while 4.9% are in buildings of two or more units.

How many two-family and small multifamily homes are in South Wilmington?

4.9% of homes in South Wilmington are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — South Wilmington village, Illinois

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for South Wilmington village, Illinois (place:71370, in state:17).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.