O'Fallon, IL
Full City Profile · Illinois · St. Clair County County
4.0
/5.0
A
Great
32,139
Population
2,033/sq mi density
$102,793
Median Income
$51,826 per capita
$274,100
Home Value
$306,969 Zillow
$1,312
Median Rent
27.2% income on rent
58°F
Avg Temperature
195
Violent Crime/100K
1,033 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
4.8 / 5.0
$102,793 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$274,100 home value, $1,312/mo rent
F
Safety
1.0 / 5.0
195 violent crimes/100K
A+
Education
5.0 / 5.0
51.3% bachelor's degree or higher
Population Overview
Total Population
32,139
Census 2023
Population Density
2,033
per square mile
Land Area
14.5
square miles (37.5 km²)
Median Age
36.9 yrs
5% below US avg (38.9 yrs)
Gender Distribution
49.4%
Male
50.6%
Female
Race & Ethnicity
| White | 72.6% US: 61.6% |
| Black | 13.6% US: 12.4% |
| Hispanic | 6% US: 18.7% |
| Asian | 2.9% US: 5.9% |
| Other | 4.9% |
City vs. U.S. Average
White
72.6%
Black
13.6%
Hispanic
6%
Asian
2.9%
Thin line = U.S. average
Language Spoken at Home
| English Only | 92.9% US: 78.5% |
| Spanish | 6% US: 13.4% |
| Other Languages | 1.1% |
City vs. U.S. Average
English Only
92.9%
Spanish
6%
Thin line = U.S. average
Social Characteristics
Foreign Born
4.2%
Veterans
19.4%
223% above US avg (6%)
Disability
10.5%
19% below US avg (13%)
Health Insurance Coverage
95.7%
5% above US avg (91.4%)
Uninsured
4.3%
50% below US avg (8.6%)
Income Inequality (Gini)
0.450
US avg: 0.490 (0 = perfect equality, 1 = max inequality)
Complete Demographics Data
Population
| Total Population | 32,139 |
| Population Year | 2023 |
| Population Density | 2,033 / sq mi |
| Land Area | 14.5 sq mi |
| Median Age | 36.9 years |
Gender
| Male | 49.4% |
| Female | 50.6% |
Race & Ethnicity
| White | 72.6% |
| Black or African American | 13.6% |
| Hispanic or Latino | 6.0% |
| Asian | 2.9% |
Language
| English Only | 92.9% |
| Spanish | 6.0% |
Social Indicators
| Foreign Born | 4.2% |
| Veterans | 19.4% |
| Disability | 10.5% |
| Health Insurance | 95.7% |
| Uninsured | 4.3% |
| Broadband Access | 94.3% |
| Gini Coefficient | 0.450 |
Classification
| USDA Rural-Urban Code | 1, Metro / 1 million+ |