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  2. /Illinois
  3. /St. Clair County
  4. /O'Fallon
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Showing latest census year. Full demographic history available with a paid plan. View plans →

Demographics — 2023 ACS 5-Year Estimatesi

Census

Populationi

32,139

Median Agei

36.9

Population Trendi

20222023

Race & Ethnicityi

Educational Attainment (Age 25+)i

HS or Higher
96.9%
BA or Higher
51.3%
Graduate+
23.3%

Housingi

Median Home Valuei

$274,100

Median Renti

$1,312

Total Units

13,152

Homeownership

70.9%

Vacancy Rate

5.3%

Home Values

Under $50K
3.5%307
$50K–$100K
2.4%216
$100K–$150K
9.7%858
$150K–$200K
11.8%1,038
$200K–$300K
31.5%2,780
$300K–$500K
35.7%3,152
$500K–$1M
5.2%455
$1M+
0.3%27

Rent Distribution

Under $500
243
$500–$750
151
$750–$1,000
728
$1,000–$1,250
512
$1,250–$1,500
510
$1,500–$2,000
921
$2,000+
456

Year Built

2020 or later
1.6%206
2010–2019
17.4%2,283
2000–2009
21.2%2,783
1990–1999
18.6%2,448
1980–1989
14%1,847
1970–1979
11.1%1,465
1960–1969
5.8%762
1950–1959
3.9%510
1940–1949
1.3%171
1939 or earlier
5.1%677

Heating Fuel

Utility Gas
58.9%7,337
Electricity
39.2%4,879
No Fuel
0.7%89
Bottled/LP Gas
0.5%64
Wood
0.3%37
Other
0.2%28
Solar
0.2%21
Fuel Oil
0%6

Economyi

Median Household Incomei

$102,793

Mean Household Incomei

$131,945

Per Capita Incomei

$51,826

Poverty Ratei

4.4%

Unemploymenti

3.2%

Labor Forcei

16,087

Household Income Distribution

Under $10K
2.8%348
$10K–$15K
1.3%159
$15K–$20K
2.1%266
$20K–$25K
3.4%423
$25K–$30K
2.2%273
$30K–$35K
1.5%192
$35K–$40K
2.6%318
$40K–$45K
2.7%336
$45K–$50K
2.1%258
$50K–$60K
7.2%902
$60K–$75K
9.6%1,196
$75K–$100K
11.1%1,388
$100K–$125K
11.5%1,429
$125K–$150K
7.5%938
$150K–$200K
13.6%1,699
$200K+
18.7%2,336

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

326

Residentsi

499

Avg. Tenant Renti

$390/mo

Programs in this community

Housing Choice Vouchers30 homes81% occupied$456/mo rent

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

Project Based Section 8182 homes96% occupied$379/mo rent

Privately owned apartments with rent subsidies tied to the building

Household Incomei

Based on area median of $102,793/yr

Extremely low incomeUnder $31K/yr
83%
Very low income$31K–$51K/yr
16.1%
Low income$51K–$82K/yr
0.9%

Who Receives This Housing

68.4% of subsidized households are headed by a single mother

63.8% of subsidized households are minority

15% of subsidized households include someone with a disability

77.7% of subsidized households include a senior (62+)

Ancestry & Heritage

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

Foreign-Born Populationi

Foreign-Borni

1,3344.2%

By Region

Top Countries

Philippines
201
United Kingdom
100
India
83
Germany
78
Korea
73
Mexico
69
Canada
51
Poland
9

Commute & Transportationi

Workersi

15,123

Avg. Commutei

26.1 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

14,775

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

4,303(19.4% of civilian adults)

Health Insurancei

95.7%Insured
4.3%Uninsured