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 High-density area
- $118,194
- Median income Above-median income area
- $782,100
- Median home value Above-median home value
- 62.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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 average Illinois ZIP), while per-capita income is $94,958. Unemployment is 10.1%, an important qualifier alongside the household-income figure. Housing is both higher-cost and owner-heavy: median home value is $782,100 (307% above the average Illinois ZIP), while 80.5% of occupied homes are owner-occupied and median rent is $854.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in DuPage County, so 60523 can be compared with both its immediate and county-level context.
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.
- Professional, scientific, and technical services
Professional, scientific, and technical services
268 establishments
- Health care and social assistance
Health care and social assistance
215 establishments
- Finance and insurance
Finance and insurance
176 establishments
- Retail trade
Retail trade
150 establishments
- Real estate and rental and leasing
Real estate and rental and leasing
111 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, 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
Who lives in ZIP 60523?
57.1
Median Age
47.1%
Male
52.9%
Female
28.4%
Foreign-Born
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 ZIP avg
$94,958
Per Capita Income
8.7%
Poverty Rate
10.1%
Unemployment Rate
29.8 min
Mean Commute Time
How ZIP 60523 ranks among Illinois ZIPs
Oak Brook, IL household income vs. every Illinois ZIP code
Median household income among 1,334 reporting Illinois ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$118,194 Top 9% higher than 91% of 1,334 Illinois ZIPs
Each bar is a $20K-wide band; taller bars hold more Illinois 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
4,830housing units
4,830
Total Housing Units
4,433
Occupied Units
397
Vacant Units
2.27
Avg Household Size
Occupancy Type
$782,100
Median Home Value
+307% vs state ZIP avg
$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.
- 60126
Elmhurst (60126)
46,371 residents
- 60181
Villa Park (60181)
28,836 residents
- 60515
Downers Grove (60515)
27,503 residents
- 60559
Westmont (60559)
24,852 residents
- 60521 17,597
Hinsdale (60521)
17,597 residents
- 60154 16,773
Westchester (60154)
16,773 residents
- 60526 13,576
La Grange Park (60526)
13,576 residents
- 60558 12,960
Western Springs (60558)
12,960 residents
- 60523 9,890
Oak Brook (60523)
9,890 residents
What this shows Among its immediate neighbors, ZIP 60523 ranks #9 by population - useful context the national average alone can't give.
ZIP 60523 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 60521
Hinsdale (60521)
$249,200 median income
- 60558
Western Springs (60558)
$230,255 median income
- 60126
Elmhurst (60126)
$147,566 median income
- 60515
Downers Grove (60515)
$123,197 median income
- 60526
La Grange Park (60526)
$120,308 median income
- 60514
Clarendon Hills (60514)
$118,716 median income
- 60523
Oak Brook (60523)
$118,194 median income
- 60154 $98,954
Westchester (60154)
$98,954 median income
- 60181 $92,142
Villa Park (60181)
$92,142 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 60523, both outside IL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (9,890 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in DuPage County
Related Areas
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.
Related
Take this with you
What to do with ZIP 60523's numbers, next.
- See how ZIP 60523 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Oak Brook, IL ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.