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.

Romeoville, IL Population, Income & Demographics 2026

CSAChicago-Naperville MSAChicago-Naperville-Elgin#31/341 Population

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

41,152

Median Agei

35.5

Race & Ethnicityi

White

40.5%16,650

Hispanic/Latino

35.7%14,687

Black

14.3%5,865

Asian

6.1%2,529

Two or More

3.2%1,323

Other

0.2%79

American Indian/Alaska Native

0%13

Native Hawaiian/Pacific Islander

0%6

Educational Attainment (Age 25+)i

GED/Alternative

3%822

High School Diploma

25.4%6,894

Some College (<1 yr)

6.3%1,704

Some College (1+ yr)

14%3,789

Associate's Degree

8.3%2,258

Bachelor's Degree

18.7%5,057

Master's Degree

7.1%1,922

Professional Degree

1.2%332

Doctorate

1.4%370

HS or Higher

85.4%

BA or Higher

28.3%

Graduate+

9.7%

Housingi

Median Home Valuei

$257,100

Median Renti

$1,886

Tenure

Owner-Occupied

80.7%10,732

Renter-Occupied

19.3%2,564

Total Units

13,768

Homeownership

80.7%

Vacancy Rate

3.4%

Home Values

Under $50K

3.8%411

$50K–$100K

0.3%30

$100K–$150K

2.5%266

$150K–$200K

12.8%1,379

$200K–$300K

50.1%5,376

$300K–$500K

29.4%3,151

$500K–$1M

0.6%60

$1M+

0.5%59

Rent Distribution

Under $500

$500–$750

$750–$1,000

$1,000–$1,250

$1,250–$1,500

210

$1,500–$2,000

1,028

$2,000+

979

Year Built

2020 or later

1.3%178

2010–2019

7.6%1,047

2000–2009

39.5%5,445

1990–1999

18.6%2,557

1980–1989

4.3%589

1970–1979

8%1,107

1960–1969

14.2%1,954

1950–1959

4.9%670

1940–1949

0.2%34

1939 or earlier

1.4%187

Heating Fuel

Utility Gas

89.1%11,845

Electricity

8%1,069

Bottled/LP Gas

1.9%248

Fuel Oil

0.6%83

No Fuel

0.4%51

Economyi

Median Household Incomei

$106,325

Mean Household Incomei

$115,140

Per Capita Incomei

$37,771

Poverty Ratei

5.5%

Unemploymenti

Labor Forcei

24,719

Household Income Distribution

Under $10K

2.1%281

$10K–$15K

1.2%159

$15K–$20K

1.1%141

$20K–$25K

2%266

$25K–$30K

1.6%218

$30K–$35K

2.3%312

$35K–$40K

1.9%255

$40K–$45K

3.1%416

$45K–$50K

2.6%348

$50K–$60K

5.2%695

$60K–$75K

9.5%1,259

$75K–$100K

14.3%1,900

$100K–$125K

13.5%1,798

$125K–$150K

14.9%1,984

$150K–$200K

14.1%1,877

$200K+

10.4%1,387

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

120

Residentsi

350

Avg. Tenant Renti

$652/mo

Avg. Waitlisti

7 months

Programs in this community

Housing Choice Vouchers120 homes87% occupied$652/mo rent

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

Household Incomei

Based on area median of $106,325/yr

Extremely low incomeUnder $32K/yr

71%

Very low income$32K–$53K/yr

20%

Low income$53K–$85K/yr

Who Receives This Housing

94% of subsidized households are headed by a single mother

96% of subsidized households are minority

12% of subsidized households include someone with a disability

8% of subsidized households include a senior (62+)

Commute & Transportationi

Workersi

22,738

Avg. Commutei

32.3 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

23,471

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

1,418(4.4% of civilian adults)