City

O Fallon, IL

1 ZIP code  ·  St. Clair County  ·  Illinois

👥35,536Population
💰$100,167Median HH Income▲ 31% above avg
🎂37.2Median Age
🏠$274,200Median Home Value≈ Avg
🎓64.1%College Grads▲ 66% above avg
📊3.1%Unemployment▼ 37% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 49.5% Female 50.5% ♀

Race & Ethnicity

White: 70.6%Hispanic: 6.2%Black: 13.2%Asian: 2.6%Other: 7.1%Race
White70.6%
Hispanic6.2%
Black13.2%
Asian2.6%
Other7.1%

Age Breakdown

Under 5
7%
5–17
21%
18–24
6%
25–44
28%
45–64
22%
65+
7%

Key Indicators

Median Age37.2 yrs
Avg HH Size2.56
Below Poverty4.2% ▼ 58% below avg
College Grads64.1% ▲ 66% above avg
Unemployment3.1% ▼ 37% below avg
No HS Diploma166 (0.7%)
HS Graduate3,046 (13.3%)
Some College2,021 (8.8%)
Associates2,990 (13%)
Bachelors2,816 (12.3%)
Graduate Degree11,891 (51.9%)

Education

No HS: 0.7%HS Grad: 13.3%Some College: 8.8%Associates: 13%Bachelors: 12.3%Graduate: 51.9%Edu
No HS0.7%
HS Grad13.3%
Some College8.8%
Associates13.0%
Bachelors12.3%
Graduate51.9%
Housing & Income

Housing Tenure

Owner: 72.1%Renter: 27.9%Tenure
Owner72.1%
Renter27.9%

Home Value Distribution

Under $50k
3%
$50k–$100k
4%
$100k–$150k
9%
$150k–$200k
11%
$200k–$300k
31%
$300k–$500k
36%
Over $500k
5%

Financials

Median HH Income$100,167 ▲ 31% above avg
Median Home Value$274,200 ≈ Avg
Home/Income Ratio2.7x (nat avg ~3.5x)
Median Rent$1,258/mo
Total Housing Units14,616
Vacant Units744

Income Distribution

Under $25k
10%
$25k–$50k
10%
$50k–$75k
17%
$75k–$100k
12%
$100k–$150k
19%
$150k–$200k
14%
Over $200k
18%
Employment & Commute

How People Get to Work

Drove Alone
81%
Public Transit
0%
Walked
1%
Work From Home
18%

Commute Time

Under 15 min
27%
15–30 min
38%
30–45 min
22%
Over 45 min
12%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
6%
1960s–1970s
10%
1980s–1990s
23%
2000+
60%
About O Fallon, IL

O Fallon is a city in Illinois, located in St. Clair County. The city spans 1 ZIP code and is home to approximately 35,536 residents. It is a relatively young city, with a median age of 37.2 years.

Economically, O Fallon is a upper-middle-income community. The median household income of $100,167 is above the national average. Approximately 4.2% of residents live below the poverty line. The unemployment rate is 3.1%, below the national average.

The real estate market in O Fallon is a mid-range housing market. Median home values stand at $274,200, which is near the national average. Renters typically pay around $1,258 per month. Homeownership is high at 72.1%, typical of suburban and family-oriented communities.

The population of O Fallon is highly educated. 64.1% of adults hold a bachelor's degree or higher — significantly above the national average. The community is primarily White (70.6%).

O Fallon, IL offers residents above-average earning potential within Illinois.

ZIP Codes in O Fallon
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
62269 35,536 $100,167 $274,200 $1,258 3.1% 64.1% 72.1%