Oak Brook vs Willowbrook

A side-by-side comparison of Oak Brook and Willowbrook: population, income, housing, and more.

Oak Brook and Willowbrook are places in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Willowbrook has the higher population (9,138 vs 8,028 in Oak Brook). Oak Brook has the higher median household income ($171,123 vs $97,861 in Willowbrook). Oak Brook has the higher median home value ($867,900 vs $367,000 in Willowbrook).

Population, income & housing

	Oak Brook	Willowbrook
Population	8,028	9,138
Median age	51.7 yrs	46.3 yrs
Median household income	$171,123	$97,861
Median home value	$867,900	$367,000
Median gross rent	$2,921	$1,691
Housing units	3,151	4,472
Homeownership rate	93.7%	74.0%
Bachelor's degree or higher	67.1%	54.1%
Unemployment rate	9.7%	3.5%

Trends (ACS 5-year, 2019–2023)

	Oak Brook	Willowbrook
Population	8,075 → 8,028 (-0.6%)	8,673 → 9,138 (+5.4%)
Median household income	$141,055 → $171,123 (+21.3%)	$76,997 → $97,861 (+27.1%)
Median home value	$801,100 → $867,900 (+8.3%)	$254,700 → $367,000 (+44.1%)
Median gross rent	$1,625 → $2,921 (+79.8%)	$1,585 → $1,691 (+6.7%)

Oak Brook

Population

8,0758,028

Median household income

$141,055$171,123

Median home value

$801,100$867,900

Median gross rent

$1,625$2,921

Willowbrook

Population

8,6739,138

Median household income

$76,997$97,861

Median home value

$254,700$367,000

Median gross rent

$1,585$1,691

Age & race/ethnicity

Age distribution (share)

	Oak Brook	Willowbrook
Under 5	3.9%	5.4%
5 to 17	17.6%	10.1%
18 to 24	7.0%	9.2%
25 to 34	4.5%	13.8%
35 to 44	11.3%	10.9%
45 to 54	10.6%	11.3%
55 to 64	14.7%	13.5%
65 to 74	14.1%	13.3%
75 and over	16.1%	12.5%

Race & ethnicity (share)

	Oak Brook	Willowbrook
White (non-Hispanic)	60.3%	65.1%
Black or African American	1.1%	3.8%
American Indian & Alaska Native	0.0%	0.0%
Asian	29.8%	18.1%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.3%	3.0%
Two or more races	2.0%	2.1%
Hispanic or Latino	6.5%	8.0%

Educational attainment (age 25+)

Share of adults 25+

	Oak Brook	Willowbrook
No high school diploma	2.1%	3.4%
High school graduate	13.1%	18.1%
Some college or associate's	17.7%	24.3%
Bachelor's degree	32.2%	28.5%
Graduate or professional degree	34.8%	25.6%

Commute to work

How workers get to work (share)

	Oak Brook	Willowbrook
Drove alone	73.6%	78.5%
Carpooled	5.7%	4.9%
Public transit	3.0%	4.8%
Walked	1.2%	0.6%
Bicycle	0.0%	0.0%
Worked from home	16.6%	10.0%
Other means	0.0%	1.2%

Housing

Units in structure (share)

	Oak Brook	Willowbrook
1-unit, detached	84.1%	36.6%
1-unit, attached	6.1%	6.0%
2 to 4 units	0.0%	13.1%
5 to 19 units	0.0%	22.8%
20 or more units	9.5%	21.5%
Mobile home & other	0.3%	0.0%

Poverty & households

	Oak Brook	Willowbrook
Poverty rate	7.3%	6.3%
Average household size	2.77	2.30
Mean commute (minutes)	32	28
Median year structure built	1978	1980