PlainZIP

Oak Brook, IL · standard

ZIP Code 60523

DuPage County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

9,890
427/sq mi
$118,194
Median income
$782,100
Median home value
62.7%
Bachelor's or higher

The verdict

Oak Brook pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 10%
household income, US ZIPs
Top 5%
home value, US ZIPs
427
people per sq mi
81%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 60523 against every reporting US ZIP.

ZIP code 60523 is a mid-sized community (a standard USPS delivery area) in Oak Brook, DuPage County, Illinois, home to 9,890 residents across 23.2 square miles, a density of 427 people per square mile, in the Chicago time zone.

ZIP 60523 skews affluent, with a median household income of $118,194 (48% above the Illinois average), while per-capita income is $94,958. Poverty here runs at 8.7%, with unemployment measured at 10.1%. Median home value sits at $782,100 (307% above the state average), median rent at $854 a month, and owner-occupancy at 80.5%.

This is a highly-educated ZIP: 62.7% of adults hold a bachelor's degree or higher, the median age is 57.1, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing DuPage County, so you can benchmark 60523 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 60523

Top 5 sectors by establishment count in Oak Brook, IL

Which industries have the most business establishments in ZIP 60523.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 60523, Oak Brook, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

9,890

Population

23.2

Area (sq mi)

427

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 60523?

57.1

Median Age

47.1%

Male

52.9%

Female

28.4%

Foreign-Born

White 63.4%
African American 1.0%
Asian 29.5%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.6%
Hispanic or Latino 4.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$118,194

Median Household Income

+48% vs state

$94,958

Per Capita Income

8.7%

Poverty Rate

10.1%

Unemployment Rate

29.8 min

Mean Commute Time

How ZIP 60523 ranks nationally

Oak Brook, IL household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$118,194 Top 10% higher than 90% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 77.0%
Bachelor's Degree or Higher 62.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

4,830

Total Housing Units

4,433

Occupied Units

397

Vacant Units

2.27

Avg Household Size

Occupancy Type

Owner 80.5%
Renter 19.5%

$782,100

Median Home Value

+307% vs state

$854

Median Rent

1977

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-5.3%

YoY Change (2024)

173

HPI Index (2000 = 100)

+73%

Total Change Since 2000

Home values in ZIP 60523 have decreased 5.3% over the past year (2024). Since 2000, this ZIP has seen +73% cumulative appreciation.

Year Annual Change HPI Index
2019 +15.8% 131
2020 -4.1% 126
2021 +16.5% 146
2022 -5.3% 139
2024 – 173

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 1,419 business establishments in ZIP 60523, employing approximately 37,633 people with a combined annual payroll of $3,626,348,000.

1,419

Businesses

37,633

Employees

$3.6B

Annual Payroll

17

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 268 18.9%
Health care and social assistance 215 15.2%
Finance and insurance 176 12.4%
Retail trade 150 10.6%
Real estate and rental and leasing 111 7.8%
Administrative and support and waste management and remediation services 81 5.7%
Accommodation and food services 75 5.3%
Other services (except public administration) 61 4.3%
Wholesale trade 53 3.7%
Construction 50 3.5%
Management of companies and enterprises 49 3.5%
Transportation and warehousing 44 3.1%
Information 29 2.0%
Manufacturing 18 1.3%
Educational services 16 1.1%
Arts, entertainment, and recreation 14 1.0%
Utilities 6 0.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 60523 vs 60514 →

ZIP 60523 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 60523 ranks #9 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 60523 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 60523 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
60514 Clarendon Hills, IL 9,708 2.8 mi
60521 Hinsdale, IL 17,597 2.9 mi
60181 Villa Park, IL 28,836 3.1 mi
60559 Westmont, IL 24,852 3.2 mi
60126 Elmhurst, IL 46,371 4.1 mi
60154 Westchester, IL 16,773 3.3 mi
60162 Hillside, IL 8,111 3.4 mi
60558 Western Springs, IL 12,960 3.4 mi
60526 La Grange Park, IL 13,576 4.1 mi
60515 Downers Grove, IL 27,503 4.0 mi

More ZIP Codes in DuPage County

60148 standard
Lombard, IL
Pop: 51,468
60126 standard
Elmhurst, IL
Pop: 46,371
60540 standard
Naperville, IL
Pop: 42,910
60188 standard
Carol Stream, IL
Pop: 42,656
60103 standard
Bartlett, IL
Pop: 41,928
60565 standard
Naperville, IL
Pop: 40,524

Related Areas

DuPage County Oak Brook, IL Illinois

Frequently Asked Questions

What county is ZIP code 60523 in? ▼
ZIP code 60523 (Oak Brook) is located in DuPage County, Illinois. DuPage County contains multiple ZIP codes, see the full list at /counties/dupage-il.
What is the population of ZIP code 60523? ▼
ZIP code 60523 in Oak Brook, IL has a population of 9,890 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 60523? ▼
The median household income in ZIP 60523 is $118,194, which is 55% above the national average of $76,288.
What is the average home value in ZIP 60523? ▼
The median home value in ZIP 60523 is $782,100, which is 181% above the national average of $278,155.
What is the demographic makeup of ZIP 60523? ▼
The largest racial group in ZIP 60523 is White at 63.4%. Hispanic or Latino residents make up 4.8% of the population.
How many businesses are in ZIP code 60523? ▼
ZIP code 60523 has 1,419 business establishments employing approximately 37,633 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 60523? ▼
The top industries by establishment count in ZIP 60523 are: Professional, scientific, and technical services (268), Health care and social assistance (215), Finance and insurance (176). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 60523? ▼
According to the FHFA House Price Index, home values in ZIP 60523 decreased by 5.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 73%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 60523? ▼
In ZIP code 60523, 77.0% of residents aged 25+ have a high school diploma or higher, and 62.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 60523? ▼
The mean commute time for workers in ZIP code 60523 is 29.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 60523? ▼
In ZIP code 60523, approximately 80.5% of occupied housing units are owner-occupied and 19.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 60523? ▼
The poverty rate in ZIP code 60523 is 8.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.