60523 ZIP Code — Oak Brook, IL

Dupage County, Illinois

ZIP code 60523 is located in Oak Brook, Illinois, within Dupage County. It covers approximately 8.95 square miles and serves a population of 10,179 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 630/708/847/224/773/331.

About ZIP code 60523

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1970s, giving the area an established character. Median home value is $714,700. Owner-occupancy is high at 80%, well above the national average.

The gap between median ($106,185) and mean household income suggests income inequality — a small number of higher earners pull the average up. 55% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is high — 62% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 60523 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

10,179

population

8.95

sq mi land

Standard

ZIP type

Central (CT)

timezone

60523 ZIP code map

Cities in ZIP code 60523

Below are the cities the US Postal Service accepts for ZIP code 60523. Using any city not on this list may result in mail delivery delays.

City	Status
Oak Brook	Acceptable
Oak Brook	Preferred

Nearby ZIP codes

60521 Hinsdale (2.8 mi) 60514 Clarendon Hills (2.8 mi) 60559 Westmont (3.1 mi) 60181 Villa Park (3.1 mi) 60558 Western Springs (3.2 mi) 60126 Elmhurst (3.7 mi) 60163 Berkeley (4.1 mi) 60526 La Grange Park (4.2 mi) 60515 Downers Grove (4.4 mi) 60599 Fox Valley (4.4 mi) 60148 Lombard (4.5 mi) 60104 Bellwood (4.9 mi)

Demographics updated 06/2026

Population
Total population	10,179
Population density	1,137 / sq mi
State FIPS	17
County FIPS	043

Geography
Land area	8.95 sq mi
Water area	0.33 sq mi
Latitude	41.8364
Longitude	-87.9520
Timezone	Central (CT)
Area code	630/708/847/224/773/331

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	31.6%	24.1%	37.2%
$50k – $100k	19.7%	27.8%	29.6%
$100k – $200k	21.7%	32.2%	24.4%
Over $200k	27.1%	15.9%	8.8%

Demographics & statistics

10,179

Population

1,137

People per sq mi

56.1

Median age

$106,185

Median household income

$82,711

Per capita income

$714,700

Median home value

$669

Median monthly rent

79.5%

Home ownership

9.3%

Poverty rate

9.5%

Unemployment

3,771

Housing units

61.8%

Bachelor's or higher

Age distribution

Male Female

156

Under 5

191

245

5–9

300

305

10–14

374

222

15–19

271

238

20–24

291

204

25–34

250

430

35–44

526

429

45–54

526

380

55–59

466

174

60–64

213

836

65–74

1,023

694

75–84

849

263

85+

323

← Male

Female →

Age summary

Group	Count	%
Under 18	1,913	18.8%
18 and over	8,266	81.2%
65 and over	3,988	39.2%
Median age	56.1 years

Race & ethnicity

White 64.1%

Asian 25.4%

Two or more races 5.1%

Hispanic or Latino 3%

Black or African American 1.7%

Other race 0.6%

Group	Count	%
White	6,729	64.1%
Asian	2,671	25.4%
Two or more races	540	5.1%
Hispanic or Latino	319	3%
Black or African American	180	1.7%
Other race	59	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	31.6%	24.1%	37.2%
$50k – $100k	19.7%	27.8%	29.6%
$100k – $200k	21.7%	32.2%	24.4%
Over $200k	27.1%	15.9%	8.8%

Under $10k 7.5%

$10k–$15k 2.5%

$15k–$25k 10.0%

$25k–$35k 6.2%

$35k–$50k 6.7%

$50k–$75k 7.0%

$75k–$100k 8.4%

$100k–$150k 9.9%

$150k–$200k 10.8%

$200k+ 31.1%

Range	% of households
Under $10k	7.5%
$10k–$15k	2.5%
$15k–$25k	10.0%
$25k–$35k	6.2%
$35k–$50k	6.7%
$50k–$75k	7.0%
$75k–$100k	8.4%
$100k–$150k	9.9%
$150k–$200k	10.8%
$200k+	31.1%
Median income	$106,185

Housing

Home values

Under $50k 1.7%

$50k–$100k 2.8%

$100k–$150k 2.3%

$150k–$200k 2.2%

$200k–$300k 2.2%

$300k–$500k 20.1%

$500k–$1M 38.5%

$1M+ 30.1%

Housing overview

Metric	Value
Median home value	$714,700
Median rent / month	$669
Owner occupied	79.5%
Renter occupied	20.5%
Vacant	5.9%
Single-family detached	60.5%
Large apartment buildings	26.2%
Mobile homes	0.2%
Median rooms	7.4
Avg household size (owned)	2.52

Year built

Era	%
2020 or later	0.2%
2010–2019	2.3%
2000–2009	5.8%
1990–1999	4.9%
1980–1989	20.5%
1970–1979	38.1%
1960–1969	16.1%
1950–1959	8.7%
1940–1949	2.1%
1939 or earlier	1.3%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	17.1%
2 bedrooms	14.1%
3 bedrooms	22.1%
4 bedrooms	30.8%
5+ bedrooms	14.5%

Vehicles per household

Vehicles	% of households
No vehicle	9.0%
1 vehicle	30.3%
2 vehicles	33.9%
3 or more	26.7%

Heating fuel

Fuel type	%
Utility gas	70.5%
Electricity	26.6%
Propane / LP gas	0.8%
Fuel oil	0.1%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	2,162	49.1%
Cohabiting couple	41	0.9%
Male householder, no spouse	730	16.6%
Female householder, no spouse	1,466	33.3%
Households with children under 18	976	22.2%
Households with seniors (65+)	2,775	63.1%
Average household size	2.29

Marital status

Status	Male	Female
Never married	23.6%	18.0%
Married	57.3%	48.9%
Separated	1.6%	1.9%
Widowed	9.6%	19.6%
Divorced	7.8%	11.5%

Education

Less than 9th grade 1.3%

Some HS, no diploma 2.6%

HS graduate 14.1%

Some college, no degree 14.7%

Associate's degree 5.6%

Bachelor's degree 32.6%

Graduate / professional 29.1%

Metric	%
HS diploma or higher	96.2%
Bachelor's or higher	61.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	108	4.6%
Kindergarten	124	5.3%
Elementary school	859	36.6%
High school	539	23.0%
College / grad school	716	30.5%

Employment

Industry of employment

Education & healthcare 32.6%

Professional & management 14.9%

Retail trade 12.5%

Manufacturing 11.6%

Finance & real estate 10.7%

Arts, food & hospitality 4.4%

Transportation & utilities 3.8%

Wholesale trade 3.4%

Other services 2.5%

Construction 1.1%

Public administration 0.9%

Information 0.8%

Agriculture & mining 0.7%

Occupation

Category	%
Management, business & arts	67.7%
Service	6.6%
Sales & office	16.8%
Natural resources & construction	1.1%
Production & transportation	7.8%

Employment type

Type	%
Private sector	88.5%
Government	8.1%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.5%
Carpool	6.2%
Public transit	2.3%
Walk	1.1%
Work from home	15.6%
Other means	0.3%
Avg commute (minutes)	26.2

Poverty

All people 9.3%

Under 18 years 10.2%

18 and over 9.1%

Married-couple families 2.4%

Female-led households 38.8%

Income support

Source	% of households
Social Security	54.8%
Retirement income	37.8%
Supplemental Security	1.8%
Cash public assistance	0.7%
Food stamps / SNAP	6.8%

Health indicators

Condition	%
Obesity	24.8%
High blood pressure	36.3%
High cholesterol	41.1%
Diabetes	12.1%
Heart disease	7.8%
Stroke	3.4%
Asthma	7.7%
Arthritis	29.3%
Kidney disease	3.4%
Pulmonary disease	6.1%
Cancer	10.0%

Behavior / access	%
Smoking	9.5%
Binge drinking	10.5%
No physical activity	22.8%
Less than 7 hrs sleep	26.5%
Depression	12.2%
Fair or poor health	11.6%
Poor mental health	8.2%
Poor physical health	8.3%
No health insurance	7.1%
Visited doctor (checkup)	79.8%
Visited dentist	74.0%
Cholesterol screening	94.8%
Teeth loss	8.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	443	5.4%

Disability	%
Any disability	11.7%
Under 18	2.4%
18–64 years	4.2%
65 and over	24.3%

Health insurance coverage

Type	%
Private insurance	76.3%
Public insurance	44.7%
No insurance	1.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,832	96.6%
Spanish	485	4.9%
Other Indo-European	68	0.7%
Asian & Pacific Islander	86	0.9%
Other languages	242	2.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,668	75.3%
Born in same state	7,576	74.4%
Born in different state	6,024	59.2%
Foreign born	92	0.9%
Naturalized citizen	2,511	24.7%
Not a US citizen	2,250	89.6%

Ancestry

Ancestry	Count	%
Italian	1,356	13.3%
French	517	5.1%
Arab	383	3.8%
English	167	1.6%
Norwegian	95	0.9%

Ancestry	Count	%
Irish	57	0.6%
Dutch	33	0.3%
Polish	31	0.3%
German	12	0.1%

Technology access

Metric	% of households
Computer access	43.2%
Internet access	88.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 60523

What city is ZIP code 60523 in?

ZIP code 60523 is primarily assigned to Oak Brook, Illinois.

What county is ZIP code 60523 in?

ZIP code 60523 falls within Dupage County, Illinois.

Does ZIP code 60523 have an older population?

39% of residents in ZIP code 60523 are 65 or older, above the national average of ~17%.

Does ZIP code 60523 have a large retiree population?

55% of households in ZIP code 60523 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 60523?

62% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 60523?

The median home value in ZIP code 60523 is $714,700.

What timezone is ZIP code 60523 in?

ZIP code 60523 observes the CST timezone.