Oak Brook, IL โ€” City Data, Demographics & Statistics

DuPage County ยท Illinois

๐Ÿงฌ

City DNA

A unique fingerprint for Oak Brook based on 8 key metrics โ€” compared to averages.

PopulationIncomeHome ValueSafetyEducationMedian AgeClimateCost of Living
Oak Brook
National Avg
Illinois Avg
Population: 57Income: 100Home Value: 87Safety: 100Education: 68Median Age: 86Climate: 50Cost of Living: 100

Quick Stats

Population

8,028

2023 ACS

Median Income

$171,123

2023

Median Home Value

$867,900

2023

Median Rent

$2,921

2023

Median Age

51.7

Unemployment

9.7%

Cost of Living Index

275.3

100 = national avg

Oak Brook is a city in DuPage County, Illinois, with a population of 8,028 according to the 2023 American Community Survey. Oak Brook is one of the communities in Illinois.

The median household income in Oak Brook is $171,123, and the median home value is $867,900. The cost of living index is 275.3 (where 100 = national average), and the median rent is $2,921 per month. The unemployment rate is 9.7%, and the median age is 51.7 years.

People & Demographics

Source: U.S. Census Bureau ACS (2023)

Population

Total Population

8,028

Male

3,738

46.6%

Female

4,290

53.4%

Median Age

51.7

Age Distribution

Education & Household

Bachelor's or Higher

47.9%

High School or Higher

57.3%

Foreign Born

27.8%

Veterans

2.8%

Married

50.9%

Avg Household Size

2.8

Marital Status by Age

Race & Ethnicity

Diversity Index

0.523

Simpson's Index (0-1)

Largest Group

White

61.5%

Foreign Born

27.8%

White
61.5%
Black
1.1%
Asian
29.8%
Two or More
7.0%
Other
0.6%

Hispanic/Latino Ethnicity

Hispanic/Latino is an ethnicity, not a race. People of any race can identify as Hispanic. This percentage overlaps with the racial categories above.

Hispanic/Latino

6.5%

521 people

Not Hispanic/Latino

93.5%

Hispanic/Latino Detail

Source: U.S. Census Bureau ACS (2023)
Mexican
126 (24.2%)
Puerto Rican
112 (21.5%)
Cuban
53 (10.2%)
Other Hispanic
230 (44.1%)

Asian Detail

Source: U.S. Census Bureau ACS (2023)
Asian Indian
1,163 (48.6%)
Chinese
431 (18.0%)
Filipino
59 (2.5%)
Korean
31 (1.3%)
Japanese
12 (0.5%)
Pakistani
430 (18.0%)
Taiwanese
30 (1.3%)
Other Asian
237 (9.9%)

Languages Spoken

Total Speakers (5+)

7,711

English Only

65.6%

#1 Non-English Language

Other Indo-European

1,146 speakers

Limited English

4.7%

Language Distribution

Other Indo-European
1,146 (14.9%)
Arabic
569 (7.4%)
Chinese
384 (5.0%)
Spanish
267 (3.5%)
Slavic Languages
186 (2.4%)
Korean
31 (0.4%)
Other Asian
27 (0.4%)
Tagalog
25 (0.3%)
German
15 (0.2%)

English Proficiency

Speaks English Very Well

95.3%

Limited English Proficiency

4.7%

Other Indo-European
5.2% limited English
Arabic
17.6% limited English
Chinese
26.3% limited English
Spanish
15.7% limited English
Slavic Languages
9.1% limited English
Korean
67.7% limited English
Other Asian
33.3% limited English
Tagalog
52.0% limited English

Veterans & Military

Total Veterans

227

2.8% of population

Disability Rate

13.2%

30 with disability

Veteran Median Income

$75,714

Period of Service

Gulf War (2001+)
4.4%
Gulf War (1990-2001)
5.3%
Vietnam
44.9%
Korea
7.0%

Veteran Age Distribution

35-54
9.7%
65-74
20.3%
75+
70.0%

Male Veterans

227

100.0%

0

Veteran vs Non-Veteran Income

Veteran Income

$75,714

Non-Veteran Income

$82,104

Difference

-$6,390

-7.8% lower

Disability Status

With Disability

30

Without Disability

197

Disability Rate

13.2%

Ancestry & Heritage

Total Reporting Ancestry

5,300

#1 Ancestry

Irish

9.8% (784)

#2 Ancestry

Italian

9.5% (759)

#3 Ancestry

Arab

8.8% (703)

Top 20 Ancestries

Source: U.S. Census Bureau ACS (2023)
Irish
9.8%
Italian
9.5%
Arab
8.8%
German
7.4%
Polish
5.3%
American
5.2%
Greek
3.3%
English
3.2%
Czech
2.5%
European
2.0%
Scottish
1.8%
Dutch
1.8%
Swedish
1.5%
French
0.9%
Lithuanian
0.5%
Scotch-Irish
0.5%
Russian
0.4%
Sub-Saharan African
0.3%
Hungarian
0.3%
Ukrainian
0.2%

Families & Households

Total Households

2,863

Family Households

2,220

77.5%

Married Couples

1,831

64.0%

Non-Family Households

643

22.5%

Single Mother Households

163

5.7%

Single Father Households

226

7.9%

Living Alone

590

20.6%

Children Under 18

Total Children

1,623

In Married Couple

1,420

87.5%

With Single Mother

91

5.6%

With Single Father

112

6.9%

Family Income

Median Family Income

$194,432

Married Couple Income

$233,523

Avg Family Size

2.8

Avg Non-Family Size

2.4

Grandparents w/ Grandchildren

205

Grandparents Responsible

37

Economy

Source: U.S. Census Bureau ACS (2023)

Income Overview

Median Household Income

$171,123

+134% vs national

Per Capita Income

$95,915

+158% vs national

Poverty Rate

7.3%

-47% vs national

Gini Index

0.5334

0 = perfect equality

Unemployment

9.7%

+86% vs national

SNAP Recipients

4.3%

of households

How Oak Brook Compares

Oak Brook vs Similar Cities

Compared to cities with under 10,000 residents. Oak Brook is highlighted.

Median Household Income

Per Capita Income

Poverty Rate

Unemployment Rate

๐Ÿ“Š

Where Do You Stack Up?

Enter your household income to see how you compare to other households in Oak Brook. The median household income here is $171,123.

$

Income Distribution

<$25K
11.1%
$25-50K
4.0%
$50-75K
8.6%
$75-100K
7.4%
$100-150K
10.0%
$150-200K
15.7%
$200K+
43.1%

Employment Snapshot

Unemployment Rate

9.7%

+73% vs IL avg

Labor Force

3,292

Employed

2,973

How People Get to Work

Employment by Sector

Education & Workforce

Bachelor's Degree+

47.9%

of adults 25+

High School Diploma+

57.3%

of adults 25+

Median Age

51.7

Work from Home

16.6%

of workers

Cost of Living

Overall Index

275.3

100 = national avg

+175.3 vs national average

Living Wage (1 Adult)

$121,131

per year

Living Wage (Family of 4)

$286,311

per year

Cost Index by Category

Housing
380.7
Food
180.8
Transportation
261.6
Healthcare
164.6
Utilities
200.0

100 = national average. Higher = more expensive.

Fair Market Rent

Source: HUD

1 Bedroom

$1,581

per month

2 Bedroom

$1,781

per month

The median household income in Oak Brook, IL is $171,123, which is 133.7% above the national average of $73,224. Per capita income is $95,915. The poverty rate of 7.3% is lower than the IL state average of 12.0%. The Gini index of income inequality is 0.5334, where 0 represents perfect equality and 1 represents maximum inequality. The unemployment rate is 9.7%, compared to the state average of 5.6%. The labor force is 3,292. 47.9% of adults hold a bachelor's degree or higher. About 73.5% of workers drive alone to work. The overall cost of living index is 275.3, which is 175.3% above the national average. Housing costs are above the national average at an index of 380.7. A single adult needs to earn approximately $121,131 per year to cover basic expenses.

Housing & Real Estate

Market SnapshotRedfin โ€” January 2026

Median Sale Price

$870,000

Median List Price

$1,600,000

Price Per Sq Ft

$223

Days on Market

59

Active Inventory

16

Months of Supply

2.3

Seller's market

Zillow Home Value

$922,610

ZHVI โ€” January 2026

Market CompetitivenessRedfin

Sold Above List

42.9%

Off Market in 2 Weeks

0.0%

Sale-to-List Ratio

96.9%

Buyer's market

Sold Above Asking
42.9%
Under Contract in 2 Wks
0.0%
Listings with Price Drops
6.3%

Price TrendsRedfin

Sale Price โ†“ 28.1%List Price โ†‘ 28.1%Mar 24 โ†’ Jan 26

Market ActivityRedfin

Homes Sold

7

New Listings

9

Pending Sales

5

Homes Sold โ†‘ 40.0%New Listings โ†“ 40.0%Pending โ†“ 68.8%Mar 24 โ†’ Jan 26

Price Per Square FootRedfin

Median Sale $/SF

$223

Median List $/SF

$330

Sale $/SF โ†“ 28.1%List $/SF โ†‘ 21.3%Mar 24 โ†’ Jan 26

Oak Brook vs Similar CitiesCensus ACS / Redfin

Compared to cities with under 10,000 residents. Oak Brook is highlighted.

Median Home Value

Median Rent

Median Price Per Sq Ft

Rent Burden

Census Housing DataU.S. Census Bureau ACS 2023

Median Home Value

$867,900

Median Rent

$2,921

Total Housing Units

3,151

Vacancy Rate

9.1%

Owner Occupied

93.7%

Renter Occupied

6.3%

Median Property Tax

$10,001

per year

Monthly Cost (w/ Mortgage)

$2,451

Housing Types

Single Family
90.2%
Multi-Family
9.5%
Mobile Home
0.3%

Property TaxU.S. Census Bureau ACS 2023

Median Property Tax

$10,001

per year

Effective Tax Rate

1.15%

of home value

Median Home Value

$867,900

Estimated Mean Tax

$12,937

The effective property tax rate is calculated by dividing the median annual property tax ($10,001) by the median home value ($867,900). In Oak Brook, IL, this works out to an effective rate of 1.15%. This is above the national average of approximately 1.1%.

The current median sale price in Oak Brook, IL is $870,000 according to Redfin data. Homes spend a median of 59 days on the market. 42.9% of homes sold above asking price. The market has 2.3 months of supply. The median price per square foot is $223. The median rent is $2,921 per month (Census ACS). About 93.7% of housing units are owner-occupied. The median year homes were built is 1978. There are 3,151 total housing units. Homeowners pay a median annual property tax of $10,001. The effective tax rate is 1.15%, above the national average.

Crime Overview

Source: FBI Crime Data Explorer (2024)

Violent Crime Rate

0.62

per 1,000 residents

-76% vs national

Property Crime Rate

63.26

per 1,000 residents

+268% vs national

Total Crimes

512

2024

Violent Clearance

0%

cases solved

Property Clearance

50%

cases solved

YoY Change

+24.2%

violent crime rate

worsening vs 2023

How Oak Brook Compares

Source: FBI (2024)

Oak Brook vs Similar Cities

Source: FBI (2024)

Compared to cities with Under 10,000 residents. Oak Brook is highlighted in green.

Violent Crime Rate (per 1,000)

Property Crime Rate (per 1,000)

Murder Rate (per 1,000)

Crime Rate Trends

Source: FBI
Violent โ†“ 49.4%Property โ†‘ 2.8%2015 โ†’ 2024

Crime Composition

Source: FBI (2024)

Violent Crime Breakdown

Property Crime Breakdown

Crime Clearance (Solve) Rates

Source: FBI (2024)

Oak Brook police solve 53% of larceny/theft cases but only 0% of motor vehicle theft cases.

Weapon Used in Violent Crime

Source: FBI (2024)

Crime Breakdown

Source: FBI Crime Data Explorer (2024)
Crime TypeCategoryCountRate per 1KClearance %
MurderViolent00.00N/A
RapeViolent10.120.0%
RobberyViolent20.250.0%
Aggravated AssaultViolent20.250.0%
BurglaryProperty253.128.0%
Larceny/TheftProperty47559.2652.8%
Motor Vehicle TheftProperty70.870.0%

Oak Brook, IL reported 5 violent crimes and 507 property crimes in 2024. The violent crime rate of 0.62 per 1,000 residents is 76.0% below the national average of 2.60 per 1,000. Law enforcement cleared 0% of violent crimes. Larceny/theft accounts for 475 of the property crime reports. Firearms were involved in 0.0% of aggravated assaults. Violent crime has been trending upward.

Crime History

Source: FBI
YearViolentPropertyViolent RateProperty Rate
202455070.6263.26
202345470.5068.68
20220550.006.86
2020133961.6249.32
201964680.7457.81
2018105521.2368.12
201735930.3773.22
2016105621.2369.13
2015104991.2361.54

Natural Hazard Risk

Source: FEMA National Risk Index

Risk Score

97.6

Relatively High

Expected Annual Loss

98.4

Score (0-100)

Social Vulnerability

15.8

Score (0-100)

Community Resilience

71.8

Score (0-100)

Scores range from 0 (lowest risk) to 100 (highest risk) relative to all U.S. communities. Data from FEMA National Risk Index.

Disaster History & Federal Spending

Source: FEMA

Total Declarations

16

Public Assistance

$73.7M

Individual Assistance

$224.9M

Most Common Type

Flood

4 declarations

Public Assistance by Category

Total: $73.4M
DisasterTypeDatePA $IA $
Covid-19 Pandemic โ†’BiologicalMar 2020$65.1M$12.6M
Covid-19 โ†’BiologicalMar 2020โ€”โ€”
Severe Storms, Straight-line Winds, and โ€ฆ โ†’FloodMay 2013$1.7M$36.9M
Severe Winter Storm and Snowstorm โ†’SnowstormMar 2011$2.8Mโ€”
Severe Storms and Flooding โ†’Severe StormAug 2010โ€”$97.1M
Severe Storms and Flooding โ†’Severe StormOct 2008$1.2M$6.2M
Severe Storms and Flooding โ†’Severe Storm(s)Sep 2007$22Kโ€”
Hurricane Katrina Evacuation โ†’HurricaneSep 2005$7Kโ€”
Illinois Winter Snow Storms โ†’SnowstormJan 2001$1.2Mโ€”
Il-winter Storm 1/1/99 โ†’SnowstormJan 1999$1.6Mโ€”
Severe Storms and Flooding โ†’Severe StormJul 1996โ€”โ€”
Severe Storms & Flooding โ†’FloodAug 1987โ€”โ€”
Blizzards & Snowstorms โ†’SnowstormJan 1979โ€”โ€”
Severe Storms, Tornadoes & Flooding โ†’Severe StormJun 1976โ€”โ€”
Severe Storms & Flooding โ†’FloodJun 1974โ€”โ€”
Severe Storms & Flooding โ†’FloodSep 1972โ€”โ€”
Tornadoes โ†’TornadoApr 1967โ€”โ€”
Severe Storms and Flooding โ†’Unknownโ€”โ€”$62.9M
Severe Storms, Tornadoes, Straight-line โ€ฆ โ†’Unknownโ€”โ€”$6.9M
Severe Storms and Flooding โ†’Unknownโ€”โ€”$2.3M

Showing 20 of 23 disasters

PA = FEMA Public Assistance (infrastructure recovery). IA = Individual Assistance (homeowner/renter aid).

Flood Insurance (NFIP)

Source: FEMA NFIP

Total Claims

3,575

Total Claims Paid

$55,072,307

Avg Claim Payout

$15,405

County-level NFIP data from FEMA National Flood Insurance Program.

Hazard Mitigation

Source: FEMA Hazard Mitigation Assistance

Mitigation Projects

22

Federal Funding

$14,613,087

Properties Protected

29

Avg Benefit-Cost Ratio

1.12

BCR

Top Mitigation Project Types

Project TypeProjectsFederal $
200.1: Acquisition of Private Real Property (Structures and Land) - Riverine12$4,281,774
403.4: Stormwater Management - Detention/Retention Basins4$2,752,200
401.1: Water and Sanitary Sewer System Protective Measures1$0
403.1: Stormwater Management - Culverts1$0
500.1: Flood Control - Floodwall1$915,000

Federally funded projects to reduce future disaster risk. Only includes completed or obligated projects.

Oak Brook has a relatively high overall natural hazard risk rating according to FEMA's National Risk Index. The top hazard risks are cold wave, tornado, strong wind. The area has had 16 federal disaster declarations. The most common disaster type is flood (4 declarations). 3,575 flood insurance claims have been filed in the area. FEMA has obligated $73,661,714 in public assistance recovery funding. $224,941,874 has been distributed in individual assistance to disaster-affected residents. 22 hazard mitigation projects have been funded to reduce future risk.

Health

Community Health

Source: CDC PLACES

Obesity Rate

25.0%

11.1pp below the national average

Depression Rate

14.2%

9.3pp below the national average

Diabetes Rate

13.7%

1.8pp above the national average

Uninsured Rate

4.9%

5.7pp below the national average

Health Scorecard

Higher scores indicate better health outcomes relative to the national average (50 = average)

Health Outcomes

Age-adjusted prevalence rates. Green bars indicate rates below the national average; red indicates above.

High Cholesterol

43.8%

Arthritis

28.8%

Cancer (excl. skin)

11.5%

Teeth Lost (65+)

9.1%

Health Risk Behaviors

Prevention & Screening

Green bars indicate rates above the national average (more preventive care); red indicates below.

Mental Health & Wellbeing

Frequent Mental Distress

10.3%

14+ days in past month

Depression

14.2%

Loneliness

29.8%

Lack of Support

22.2%

Disability Prevalence

Any Disability

24.5%

Mobility

13.3%

Cognitive

7.9%

Hearing

8.0%

Vision

3.9%

Self-Care

2.8%

Independent Living

5.6%

Health-Related Social Needs

Prevalence of social risk factors affecting community health

Oak Brook has an obesity rate of 25.0%, which is 11.1pp below the national average. The depression rate is 14.2%, 9.3pp below the national average. About 4.9% of adults lack health insurance. 84.1% of residents had an annual checkup in the past year.

Nearby Hospitals

Source: CMS Hospital Compare

Nearest Hospitals

5

With Emergency Services

5

Avg CMS Rating

4.0 / 5

Nearest Hospital

2.8 mi

Adventist Hinsdale Hospital

Loading mapโ€ฆ
HospitalDistanceTypeRatingER
Adventist Hinsdale Hospital2.8 miAcute Care Hospitals4/5Yes
Advocate Good Samaritan Hospital4.1 miAcute Care Hospitals4/5Yes
Elmhurst Memorial Hospital4.2 miAcute Care Hospitals4/5Yes
Adventist La Grange Memorial Hospital5.8 miAcute Care Hospitals5/5Yes
Loyola University Medical Center6.4 miAcute Care Hospitals3/5Yes

Climate & Environment

Water Systems

Source: EPA SDWIS

Water Systems

7

Pop. Served

13,471

Violations (5yr)

0

No violations

System NamePop. ServedViolations (5yr)
OAK BROOK9,4000
NORTHFIELD ESTATES1,6200
SUBURBAN APARTMENTS (DE KALB UNIV DVL)1,0500
FORREST BROOKE MHP4910
WHISPERING PINES MHP4000
SILVER SHORES MOBILE HOME PARK3600
WEEKI WACHEE NORTH TP1500

There are 7 water systems serving the area.

Infrastructure

Commute Overview2023 ACS

Drive Alone

73.5%

-7% vs national

Public Transit

3.0%

+237% vs national

Work From Home

16.6%

+78% vs national

Carpool

5.7%

Walk

1.2%

How Oak Brook's Commute ComparesCensus ACS 2023

How People Get to WorkCensus ACS 2023

Commute Mode BreakdownCensus ACS 2023

Traffic Fatalities

Source: NHTSA FARS (2023)

Fatalities

2

2023

2-Year Avg

2

fatalities/yr

Pedestrian

1

Nighttime

1

dark conditions

YearCrashesFatalitiesAlcoholPedestrianCyclist
202322010
201811000

Data from NHTSA Fatality Analysis Reporting System (FARS). Includes only crashes involving at least one fatality.

Commute data for Oak Brook, IL covers travel times and transportation modes. 73.5% of workers drive alone, compared to the national average of 78.7%. 16.6% work from home, which is above the IL state average of 8.4%. Public transit is used by 3.0% of commuters, compared to the national average of 0.9%. 5.7% of workers carpool. 1.2% walk to work. In 2023, there were 2 traffic fatalities from 2 fatal crashes. 1 was a pedestrian.

Internet & Broadband Access

Source: Census ACS

Broadband Access

94.1%

of households

Cable / Fiber / DSL

84.1%

of households

No Internet

3.8%

of households

Total Households

2,863

Internet Subscription Types

Cable, Fiber, or DSL
84.1%
Cellular Data Plan
90.4%
Satellite
10.9%
Cellular Only (no wired)
8.6%
No Internet Access
3.8%

Device Ownership

Source: Census ACS

Has Computer

96.5%

of households

Smartphone

91.6%

of households

Desktop / Laptop

92.3%

of households

Tablet

80.1%

of households

Any Computing Device
96.5%
Smartphone
91.6%
Desktop / Laptop
92.3%
Tablet
80.1%
Smartphone Only
1.1%
No Computer
3.5%

Percentage of households with each device type. Data from the U.S. Census Bureau ACS (2023 5-year estimates, tables B28001 & B28002).

Electricity Rates

Source: U.S. Energy Information Administration (2024)

Residential Rate

15.9ยข

per kWh

-17% vs Under 10,000 avg

Commercial Rate

11.8ยข

per kWh

-24% vs Under 10,000 avg

Industrial Rate

8.8ยข

per kWh

-26% vs Under 10,000 avg

Avg Monthly Bill

$110

residential

-25% vs Under 10,000 avg

7% below the national average of 17.1ยข/kWh

Residential electricity in Illinois averages 15.9ยข per kWh, compared to the national average of 17.1ยข. The average monthly electric bill is $110. State-level averages from EIA Electric Sales & Revenue data (2024).

Oak Brook vs Similar Cities

Source: EIA (2024)

Comparing electricity rates with randomly selected cities of similar population (Under 10,000). Each city represents its state's average rate.

Residential Rate (ยข/kWh)

Commercial Rate (ยข/kWh)

Industrial Rate (ยข/kWh)

Average Monthly Bill

Water Systems

Source: EPA SDWIS

Water Systems

7

Population Served

13,471

Violations (5yr)

0

System NameTypeSourcePop. ServedViolations
OAK BROOKCommunityPurchased surface water9,4000
NORTHFIELD ESTATESCommunityGround water1,6200
SUBURBAN APARTMENTS (DE KALB UNIV DVL)CommunityGround water1,0500
FORREST BROOKE MHPCommunityGround water4910
WHISPERING PINES MHPCommunityGround water4000
SILVER SHORES MOBILE HOME PARKCommunityGround water3600
WEEKI WACHEE NORTH TPCommunityGround water1500

94.1% of households in Oak Brook have broadband internet access. 84.1% have cable, fiber, or DSL service. 8.6% rely solely on cellular data without a wired connection. 3.8% of households have no internet access. The area is served by 7 water systems, providing water to 13,471 people. No water quality violations have been reported in the past 5 years.

Politics & Government

County-level data: Election results are reported at the county level. Oak Brook is located in DuPage County, IL. Results reflect all voters in the county, not just those in Oak Brook.

Election Overview

Source: DuPage County (2024)

2024 Winner

Democrat

Dem Votes

251,164

55.9%

GOP Votes

191,243

42.5%

Total Votes

449,660

Margin

D+13.3%

Shift from 2020

R+4.7pp

vs prior election

๐Ÿ“ŠElection Results by Year
2016โ€“2024
๐Ÿ“ˆPartisan Lean Trend
D+13.3%

Election History

Source: County-Level Election Results
YearDem VotesGOP VotesTotalDem %GOP %Margin
2024251,164191,243449,66055.9%42.5%D+13.3
2020281,222193,611485,06458.0%39.9%D+18.1
2016222,499164,355412,92953.9%39.8%D+14.1

In the 2024 presidential election, DuPage County recorded 449,660 total votes. Democrats won the county with 55.9% of the vote compared to 42.5% for Republicans, a margin of D+13.3%. Compared to 2020, the margin shifted R+4.7pp from the previous election.

Nonprofits Overview

Source: IRS Exempt Organizations BMF

Total Nonprofits

195

Total Assets

$1.5B

Total Income

$859.6M

Per 10K Residents

242.9

nonprofits

-13.4% vs peers avg

Orgs with >$1M Assets

66

Median Assets

$798K

Oldest Active

1941

ruling year

Newest Org

2025

ruling year

Nonprofits by Category

Source: IRS / NTEE Classification
Philanthropy
39
Human Services
17
Religion
17
Education
16
Housing & Shelter
12
Health Care
11
Arts & Culture
7
Recreation & Sports
6
International
6
Voluntary Health
4
Medical Research
4
Community Improvement
4
Public Benefit
4
Mental Health
3
Animal-Related
2
Crime & Legal
2
Environment
1
Employment
1
Food & Agriculture
1
Youth Development
1
Civil Rights
1
Science & Tech
1
Unknown
1
85.5%of all nonprofit assets are held by the 10 largest organizations

Top 10 hold $1.3B of $1.5B total

Nonprofit Size Distribution

Source: IRS Exempt Organizations BMF

Number of nonprofits by total asset size

When Were Nonprofits Founded?

Source: IRS Ruling Date

Number of currently active nonprofits by founding decade

Nonprofits per 10K Residents vs Similar Cities

Source: IRS BMF + Census ACS

Compared to cities with population Under 10,000

Largest Nonprofits in Oak Brook

Source: IRS Exempt Organizations BMF
OrganizationCategoryAssetsIncomeEst.IRS
ADVOCATE HEALTH CARE NETWORKHealth Care$625.8M$21.8M1988
RADIOLOGICAL SOCIETY OF NORTH AMERICA INCVoluntary Health$218.3M$86.8M1943
LIONS CLUBS INTERNATIONAL FTDNPhilanthropy$160.0M$411.6M1969
ILLINOIS CHILDRENS HEALTHCARE FOUNDATIONHuman Services$151.0M$166.7M2003
EMBRACE LIVING CHARITIESHuman Services$38.5M$1.2M1941
THE AMERICAN LARYNGOLOGICAL RHINOLOGICAL AND OTOLOGICALVoluntary Health$24.1M$5.0M1992
ZONTA INTERNATIONAL FOUNDATIONInternational$22.6M$30.2M1986
NEW DIRECTIONS HOUSING CORPORATIONHousing & Shelter$21.2M$7.5M1995
ODYSSEY CHARITIESRecreation & Sports$18.2M$1.6M2015
SOCIETY FOR LABORATORY AUTOMATION AND SCREENINGScience & Tech$16.1M$11.3M2011
FOUNDATION OF THE AMERICAN SOCIETY OF NEURORADIOLOGYMedical Research$14.0M$15.5M2019
JOSEPH LIZZADRO FAMILY FOUNDATIONPhilanthropy$13.9M$4.4M2025
GRATIOT LAKE CONSERVANCYEnvironment$13.1M$999K1998
EMBRACE LIVING DEVELOPMENTPhilanthropy$11.3M$3.4M1995
ACE HARDWARE FOUNDATIONโ€”$10.3M$23.8M1992
AMERICAN ASSOCIATION OF PHYSICIANS OF INDIA ORGINHealth Care$6.5M$2.9M1984
DONALD P AND BYRD M KELLY FOUNDATIONโ€”$6.4M$220K1987
FRANCISCAN TERTIARY PROVINCE OF THE SACRED HEART INCโ€”$6.1M$3.6M1946
GREENCASTLE OF NORTH AURORA INCHousing & Shelter$5.9M$931K2002
INDIMA FOUNDATIONโ€”$5.4M$6.5M1994
RECOVERY INTERNATIONALMental Health$4.9M$847K1942
ALBERT M ZARI FOUNDATIONPhilanthropy$4.9M$2.6M2014
ARTHUR G JAROS SR AND DAWN L JAROS CHARITABLE TRPhilanthropy$4.7M$817K2005
THE HUMAN DEVELOPMENT FOUNDATION OF NORTH AMERICAInternational$4.6M$2.1M1998
LIZZADRO MUSEUM OF LAPIDARY ARTSArts & Culture$4.4M$1.0M1964
AMERICAN SOCIETY OF HEAD AND NECK RADIOLOGY INCHealth Care$4.3M$1.3M2022
DUPAGE MAYORS & MANAGERS CONFERENCE INCPublic Benefit$4.0M$1.1M1980
CAPRARO FAMILY FOUNDATIONPhilanthropy$4.0M$1.1M2011
APOSTLES VILLAGE INCHousing & Shelter$3.6M$924K2007
WITZ FAMILY FOUNDATIONโ€”$3.5M$1.5M1959
CASL HOUSING CORPORATIONHousing & Shelter$3.0M$1.4M1995
LAURENCE E HERMAN FAMILY FOUNDATIONPhilanthropy$3.0M$573K2008
GREENCASTLE OF PALATINE INCโ€”$2.8M$1.1M1964
EMBRACE LIVING COMMUNITIESCommunity Improvement$2.7M$2.2M1988
SHARED VISION INCMental Health$2.7M$2.7M2014
GANDHI CHARITABLE FOUNDATION INCPhilanthropy$2.7M$662K2022
THE KING FAMILY FOUNDATIONPhilanthropy$2.4M$38K1995
RUNDGREN FOUNDATIONPhilanthropy$2.4M$469K1997
YUNG HOPE FOUNDATIONPhilanthropy$2.4M$415K2019
GREENCASTLE OF MULFORD INCHuman Services$2.2M$2.4M1980
WOMENS TREATMENT CENTERHuman Services$2.2M$278K1990
GREENCASTLE OF BARRINGTON INCHousing & Shelter$2.1M$1.7M1964
GLENVIEW ELDERLY HOUSINGHousing & Shelter$2.0M$1.5M1964
KHOSA JG FOUNDATIONโ€”$2.0M$1.3M1988
GREENCASTLE OF ALLERTON INCHousing & Shelter$2.0M$301K2010
BARNES FOUNDATIONPhilanthropy$2.0M$1.1M2009
GREENCASTLE OF BIENTERRA INCHousing & Shelter$1.9M$710K1997
GREENCASTLE OF LOVES PARK INCHousing & Shelter$1.9M$749K2000
FAR EASTERN UNIV DR NICANOR REYES SCHOOL OF MEDICINE ALUMNI FNDATIONInternational$1.9M$420K1972
CALEEL FOUNDATION INCPhilanthropy$1.8M$647K2019

Oak Brook, IL has 195 registered 501(c)(3) nonprofit organizations with combined assets of $1.5B. The most common category is Philanthropy & Grantmaking, with 39 organizations. 66 nonprofits have assets exceeding $1 million. That works out to 242.9 nonprofits per 10,000 residents. The oldest active nonprofit dates back to 1941.

SBA Lending Overview

Source: SBA FOIA Loan-Level Data

Total SBA Loans

139

Total Approved

$75.8M

Jobs Supported

1,772

Per 10K Residents

173.1

SBA loans

+29.0% vs peers avg

Unique Lenders

46

Top Lender

JPMorgan Chase Bank, National Association

25 loans

Top Industry

Professional & Technical Services

Data Span

1994โ€“2026

Loan Program Breakdown

Source: SBA FOIA
7(a)91% of all loans

Loans

127

Total Amount

$65.5M

Avg Loan

$515,983

Median Loan

$150,000

SBA Guaranteed

$49.0M(75%)

Jobs Supported

1,651

5049% of all loans

Loans

12

Total Amount

$10.3M

Avg Loan

$857,083

Median Loan

$837,000

7(a) โ€” 91%504 โ€” 9%

Recent Activity (Last 5 Years)

Source: SBA FOIA

Recent Loans

36

26% of all-time total

Recent Amount

$42.0M

55% of all-time total

Avg Recent Loan

$1,166,242

Top Industries Funded

Source: SBA FOIA / NAICS Codes
Professional & Technical Services40 loans
NAICS 54
$9.6M
Health Care & Social Assistance17 loans
NAICS 62
$14.1M
Other Services13 loans
NAICS 81
$7.0M
Finance & Insurance12 loans
NAICS 52
$8.4M
Accommodation & Food Services10 loans
NAICS 72
$12.5M

SBA Loans per 10K Residents vs Similar Cities

Source: SBA FOIA + Census ACS

Compared to cities with population Under 10,000

Top SBA Borrowers

Source: SBA FOIA
BusinessLoansAmount
Kids Urgent Care Ltd1$5.0M
Mad Ape Llc2$5.0M
Oakbrook Events Llc1$5.0M
Peak Midwest Properties Llc1$3.5M
Tidal Pay1$3.3M
Buddy Bear Car Wash2$2.8M
Arrow Freight Inc.1$2.8M
Molecular Imaging Chicago Llc1$2.4M
Alan Rocca Ltd.1$2.3M
Properties by Mmo Llc1$2.2M

Oak Brook, IL has received 139 SBA loans totaling $75.8M in approved funding between 1994 and 2026. The 7(a) program accounts for 127 loans (91% of the total), supporting 1,651 jobs. The 504 program, focused on real estate and large equipment, has funded 12 loans totaling $10.3M. The most common industry receiving SBA funding is Professional & Technical Services. The most active SBA lender in Oak Brook is JPMorgan Chase Bank, National Association with 25 loans. That works out to 173.1 SBA loans per 10,000 residents.

ZIP Code Overview

Source: Census ACS

ZIP Codes

50

Total Population

1,138,983

Avg Median Income

$98,331

Avg Home Value

-$12,973,817

ZIP Code Details

Source: Census ACS
ZIP CodePopulationMedian IncomeHome ValueMedian RentArea (sq mi)
6010137,202$87,860$315,300$1,23611.4
6010418,390$77,270$219,300$1,2212.3
6010619,908$78,027$265,600$1,3799.3
6012647,759$143,333$527,600$1,89011.2
6013014,000$81,323$293,800$1,3522.8
6013118,059$76,404$261,800$1,0925.4
6013738,754$131,695$490,800$1,32111.0
6013932,954$81,996$249,300$1,5585.5
60141269$16,611N/A$5720.4
6014852,358$96,606$328,600$1,80513.8
6015323,173$66,498$212,600$1,2032.8
6015416,524$103,561$297,400$1,7674.4
601557,906$59,688$240,600$1,0911.9
6016024,513$64,740$265,000$1,1944.5
601628,133$70,772$233,800$1,2653.2
601635,205$83,176$223,200$1,2921.3
6016421,248$76,483$240,400$1,1434.9
601654,504$75,165$218,300$1,2220.3
6017110,482$74,793$244,700$1,2302.3
6017611,454$67,473$276,200$1,2142.5
6018130,247$90,375$294,700$1,6196.5
6018728,867$119,048$432,200$1,7446.6
6018930,866$124,886$467,300$1,74710.4
6019114,381$90,299$307,600$1,6495.2
603013,508$103,448$230,300$2,2950.2
6030232,589$97,414$450,700$1,3483.0
6030417,218$132,841$470,100$1,2791.6
6030511,489$148,711$676,900$1,4112.5
6040263,867$73,993$277,800$1,1685.7
6045814,153$59,443$223,800$1,2192.9
604805,319$97,311$355,600$1,32811.2
6050111,490$62,110$227,300$1,0174.4
6051319,264$108,527$314,000$1,3343.1
605149,760$114,672$568,300$1,1952.0
6051529,045$121,358$453,300$1,56311.8
6051628,594$118,780$423,000$1,6367.6
6051733,173$96,357$342,000$1,5079.3
6052118,097$244,318$988,000$1,9214.7
6052310,012$114,418$733,300$7768.9
6052531,453$113,718$422,500$1,47513.1
6052613,341$118,831$427,800$1,4133.9
6052729,024$110,482$488,300$1,55314.4
6053228,635$100,373$387,800$1,5768.5
6053410,362$63,827$243,500$1,1491.9
6054616,582$109,933$377,600$1,3314.0
6055813,353$218,839$691,300$1,9322.8
6055924,404$87,474$356,400$1,4914.7
6056122,975$109,974$388,800$1,6846.6
6070740,897$82,746$315,300$1,3093.6
6080483,223$68,548$236,000$1,1217.1

Oak Brook, IL has 50 ZIP codes with a combined population of 1,138,983. The average median household income across all ZIP codes is $98,331. The average median home value is -$12,973,817. The average median monthly rent is $1,397.

Similar Cities

Cities with similar population, income, housing, crime, education, and demographic profiles.

County Data

Advertisement