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.

Flossmoor, IL Population, Income & Demographics 2026

CSAChicago-Naperville MSAChicago-Naperville-Elgin#67/303 Income

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

9,391

Median Agei

47.6

Race & Ethnicityi

Black

59.5%5,588

White

30.1%2,829

Hispanic/Latino

4.9%456

Two or More

3.8%358

Asian

1.6%151

Other

0.1%9

Educational Attainment (Age 25+)i

GED/Alternative

1.9%134

High School Diploma

8.3%582

Some College (<1 yr)

3.9%273

Some College (1+ yr)

14.3%998

Associate's Degree

5.7%401

Bachelor's Degree

34.5%2,409

Master's Degree

20.6%1,440

Professional Degree

6.4%445

Doctorate

2.9%203

HS or Higher

98.7%

BA or Higher

64.4%

Graduate+

29.9%

Housingi

Median Home Valuei

$344,800

Median Renti

$2,164

Tenure

Owner-Occupied

95.1%3,365

Renter-Occupied

4.9%175

Total Units

3,671

Homeownership

95.1%

Vacancy Rate

3.6%

Home Values

Under $50K

3.2%108

$50K–$100K

2.8%93

$100K–$150K

7%236

$150K–$200K

4.2%140

$200K–$300K

19.8%666

$300K–$500K

50%1,681

$500K–$1M

12.8%431

$1M+

0.3%10

Rent Distribution

Under $500

$1,000–$1,250

$2,000+

107

Year Built

2010–2019

0.8%28

2000–2009

9.2%337

1990–1999

15.4%564

1980–1989

7%256

1970–1979

15.1%554

1960–1969

22.9%842

1950–1959

18.1%666

1940–1949

5.7%211

1939 or earlier

5.8%213

Heating Fuel

Utility Gas

80.5%2,848

Electricity

19.1%675

Other

0.3%12

Bottled/LP Gas

0.1%5

Economyi

Median Household Incomei

$133,663

Mean Household Incomei

$185,077

Per Capita Incomei

$70,991

Poverty Ratei

5.4%

Unemploymenti

11.6%

Labor Forcei

5,021

Household Income Distribution

Under $10K

0.9%31

$10K–$15K

3.2%115

$15K–$20K

3.3%118

$20K–$25K

1.5%53

$25K–$30K

0.8%27

$30K–$35K

0.7%26

$35K–$40K

0.4%14

$45K–$50K

0.3%11

$50K–$60K

2.9%102

$60K–$75K

5.6%200

$75K–$100K

7.9%278

$100K–$125K

18.1%642

$125K–$150K

9.2%325

$150K–$200K

13.6%483

$200K+

31.5%1,115

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

Residentsi

335

Avg. Tenant Renti

$638/mo

Avg. Waitlisti

98 months

Programs in this community

Housing Choice Vouchers81 homes93% occupied$638/mo rent

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

Household Incomei

Based on area median of $133,663/yr

Extremely low incomeUnder $40K/yr

80%

Very low income$40K–$67K/yr

16%

Low income$67K–$107K/yr

Who Receives This Housing

95% of subsidized households are headed by a single mother

99% of subsidized households are minority

14% of subsidized households include someone with a disability

9% of subsidized households include a senior (62+)

Commute & Transportationi

Workersi

4,356

Avg. Commutei

32.9 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

4,440

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

159(2.2% of civilian adults)