What kinds of homes are in Oak Brook, IL?

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

Oak Brook, IL has 3,373 (±242) homes (2020–2024 American Community Survey).

That is about 423 homes per square mile of land.

80.1% are detached single-family houses.

0.4% are in buildings of two to four units.

11.8% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 3,373 (±242)
Detached houses: 80.1%
2–4 unit buildings: 0.4%
5+ unit buildings: 11.8%

Homes in Oak Brook by building size

Housing units by units in structure, 2020–2024
Building type	Oak Brook	DuPage County	Illinois	United States
Single-family, detached	80.1% (±3.9 points)	58.4%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	7.7% (±2.9 points)	11.8%	6.1%	6.2%
2 units	0.4% (±0.7 points)	0.7%	5.2%	3.4%
3 or 4 units	0.0% (±1.1 points)	4.0%	6.4%	4.3%
5 to 9 units	0.0% (±1.1 points)	6.5%	6.3%	4.5%
10 to 19 units	0.0% (±1.1 points)	5.8%	4.0%	4.3%
20 or more units	11.8% (±2.9 points)	12.5%	11.5%	10.3%
Mobile home	0.0% (±1.1 points)	0.3%	2.3%	5.6%
Boat, RV, van, etc.	0.0% (±1.1 points)	0.0%	0.0%	0.1%

In Oak Brook, the share of homes in buildings of five or more units is lower than in DuPage County (24.8%).

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

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Oak Brook

Nearest places with a published estimate, compared with Oak Brook
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Oak Brook	—	11.8% (±3.3 points)	—
Oakbrook Terrace	1.4 mi	72.6% (±9.1 points)	Higher
York Township (DuPage County)	2.1 mi	29.5% (±1.3 points)	Higher
Clarendon Hills	2.6 mi	21.3% (±6.9 points)	Higher
Hinsdale	2.8 mi	9.3% (±2.1 points)	Not measurably different
Westmont	3.1 mi	43.0% (±3.7 points)	Higher
Westchester	3.3 mi	1.0% (±0.8 points)	Lower
Hillside	3.4 mi	30.3% (±10.8 points)	Higher
Western Springs	3.6 mi	2.8% (±2.2 points)	Lower

Nearby places with a measurably lower figure: Westchester, IL (1.0%), Western Springs, IL (2.8%).

Nearby places with a measurably higher figure: Oakbrook Terrace, IL (72.6%), York Township (DuPage County), IL (29.5%), Clarendon Hills, IL (21.3%).

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 DuPage County, place by place

Rank	Place	Homes in buildings of 5 or more units
29	Darien	18.1% (±3.8 points)
30	Villa Park	17.1% (±3.1 points)
31	Winfield Township	16.1% (±2.2 points)
32	Burr Ridge	15.3% (±5.9 points)
33	Roselle	14.0% (±3.0 points)
34	Hanover Park	12.4% (±2.6 points)
35	Oak Brook	11.8% (±3.3 points)
36	Hinsdale	9.3% (±2.1 points)
37	Bartlett	6.7% (±1.8 points)
38	Winfield	5.8% (±3.3 points)
39	Wayne Township	4.8% (±0.9 points)

Showing 11 of 39 places in DuPage 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 Oak Brook

How many homes are in Oak Brook?

Oak Brook, IL has an estimated 3,373 (±242) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Oak Brook houses or apartments?

80.1% are detached houses and 7.7% attached houses, while 12.2% are in buildings of two or more units.

How many two-family and small multifamily homes are in Oak Brook?

0.4% of homes in Oak Brook 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 — Oak Brook 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 Oak Brook village, Illinois (place:54534, 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.