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.

Naperville, IL Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

150,692

Median Agei

40.4

Race & Ethnicityi

White

61%91,940

Asian

22.3%33,649

Hispanic/Latino

7.6%11,441

Black

4.3%6,471

Two or More

4.1%6,189

Other

0.6%866

American Indian/Alaska Native

0.1%134

Native Hawaiian/Pacific Islander

0%2

Educational Attainment (Age 25+)i

GED/Alternative

1%1,011

High School Diploma

8.2%8,468

Some College (<1 yr)

3.3%3,434

Some College (1+ yr)

7.3%7,550

Associate's Degree

4.9%5,099

Bachelor's Degree

39.2%40,387

Master's Degree

25.3%26,109

Professional Degree

4.2%4,369

Doctorate

3.8%3,883

HS or Higher

97.3%

BA or Higher

72.5%

Graduate+

33.3%

Housingi

Median Home Valuei

$540,200

Median Renti

$1,885

Tenure

Owner-Occupied

74.8%41,020

Renter-Occupied

25.2%13,827

Total Units

57,135

Homeownership

74.8%

Vacancy Rate

Economyi

Median Household Incomei

$155,105

Mean Household Incomei

$200,019

Per Capita Incomei

$73,721

Poverty Ratei

4.4%

Unemploymenti

4.5%

Labor Forcei

80,414

Household Income Distribution

Under $10K

2.5%1,382

$10K–$15K

1.2%671

$15K–$20K

1.1%616

$20K–$25K

0.8%455

$25K–$30K

1.5%817

$30K–$35K

1.8%968

$35K–$40K

2.1%1,166

$40K–$45K

1.5%803

$45K–$50K

1.6%869

$50K–$60K

4%2,177

$60K–$75K

5.1%2,774

$75K–$100K

9%4,933

$100K–$125K

8.4%4,591

$125K–$150K

7.8%4,277

$150K–$200K

14.7%8,076

$200K+

37%20,272

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

1,219

Residentsi

2,436

Avg. Tenant Renti

$395/mo

Programs in this community

Housing Choice Vouchers24 homes97% occupied$419/mo rent

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

Project Based Section 8319 homes99% occupied$393/mo rent

Privately owned apartments with rent subsidies tied to the building

Household Incomei

Based on area median of $155,105/yr

Extremely low incomeUnder $47K/yr

82.9%

Very low income$47K–$78K/yr

15%

Low income$78K–$124K/yr

2.1%

Who Receives This Housing

63.4% of subsidized households are headed by a single mother

46.1% of subsidized households are minority

10.4% of subsidized households include someone with a disability

87.8% of subsidized households include a senior (62+)

Ancestry & Heritage

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

Social Characteristicsi

Marital Status (15+)i

Veteransi

3,231(2.9% of civilian adults)