Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Oakbrook Terrace, IL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

2,723

Median Agei

34.4

Race & Ethnicityi

White

57.2%1,558

Black

20.3%553

Asian

10.8%295

Hispanic/Latino

8.5%232

Two or More

3.1%85

Educational Attainment (Age 25+)i

GED/Alternative

0.2%4

High School Diploma

11.2%219

Some College (<1 yr)

5%99

Some College (1+ yr)

16.8%329

Associate's Degree

5.2%101

Bachelor's Degree

29.1%571

Master's Degree

12.6%247

Professional Degree

10.8%211

Doctorate

4.2%82

HS or Higher

95%

BA or Higher

56.7%

Graduate+

27.5%

Housingi

Median Home Valuei

$372,400

Median Renti

$1,875

Tenure

Owner-Occupied

24.8%331

Renter-Occupied

75.2%1,003

Total Units

1,526

Homeownership

24.8%

Vacancy Rate

12.6%

Economyi

Median Household Incomei

$76,905

Mean Household Incomei

$116,149

Per Capita Incomei

$58,073

Poverty Ratei

17.3%

Unemploymenti

3.7%

Labor Forcei

1,505

Household Income Distribution

Under $10K

7.4%99

$10K–$15K

3.8%51

$15K–$20K

1%13

$20K–$25K

4.2%56

$25K–$30K

6.1%82

$30K–$35K

0.7%10

$35K–$40K

3.8%51

$40K–$45K

1.4%19

$45K–$50K

3%40

$50K–$60K

3.1%42

$60K–$75K

14.1%188

$75K–$100K

12.4%165

$100K–$125K

15.1%201

$125K–$150K

4.3%57

$150K–$200K

8.8%118

$200K+

10.6%142

Federally Subsidized Housingi

HUD

The federal government helps low-income families, seniors, and people with disabilities afford housing through several programs. Residents typically pay about 30% of their income toward rent, with the government covering the rest. This data shows how many households in this community receive that assistance.

Subsidized Homesi

Programs in this community

Housing Choice Vouchers1 homes

Rental vouchers (Section 8) that help tenants pay for private-market housing

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Social Characteristicsi

Marital Status (15+)i

Veteransi

82(3.6% of civilian adults)