O'Fallon, MO — City Data & Statistics

Median Income $107,203

43% higher than US avg

Home Value $305,100

8% higher than US avg

Violent Crime 72/100K

81% lower than US avg

Bachelor's+ 42.4%

26% higher than US avg

Median Rent $1,400

20% higher than US avg

Obesity Rate 35.3%

10% higher than US avg

Unemployment 1.9%

47% lower than US avg

Poverty Rate 2.7%

78% lower than US avg

How O'Fallon Compares to the U.S. Average (100% = U.S. avg)

People

Population92,697

Median Age38.2 yrs

Density3,034/mi²

Male / Female49% / 51%

Largest GroupWhite 83%

Veterans6.2%

Economy

A+

Median Income$107,203

Per Capita$47,429

Unemployment1.9%

Poverty2.7%

Commute26 min

Housing

A+

Home Value$305,100

Rent$1,400

OwnershipN/A

Housing Units34,965

Rent Burden25.1%

Crime

Violent72/100K

Property1,291/100K

Murder0.0/100K

Assault50/100K

Burglary121/100K

Health

Obesity35.3%

Uninsured6.7%

Smoking12.6%

Depression23.8%

Heart Disease4.7%

Climate

Avg Temp55°F (13°C)

AQI41 (Good)

Rain37.8 in/yr

Sunny Days267/yr

Elevation548 ft (167 m)

Education

Bachelor's+42.4%

High School+95.5%

Graduate+15.1%

School Score5.51

Community

2024 VoteR 77% / D 22%

Commute26 min

Broadband94.3%

EV Stations3

Is O'Fallon a Good Place to Live?

Based on current data, O'Fallon receives an overall livability score of 3.8 out of 5.0, earning a grade of B+. Key strengths include above-average household incomes, low unemployment, low crime rates, a highly educated population. O'Fallon offers a solid quality of life with a good balance of affordability, safety, and opportunity.

Economy & Jobs

The median household income in O'Fallon is $107,203, which is significantly higher than the national average — 43% above $75,149. This places O'Fallon among higher-income communities. The job market is very strong with unemployment at just 1.9%. Only 2.7% of residents live below the poverty line, well below the national rate of 12.4%. Workers commute an average of 26 minutes.

Cost of Living & Housing

The median home value in O'Fallon is $305,100, roughly aligned with the national median of $281,900. Renters pay a median of $1,400 per month. At just 2.8x median income, home prices are very affordable relative to local earnings.

Safety & Crime

O'Fallon is a very safe community with a violent crime rate of 72 per 100,000 residents — well below the national average of 380. Property crime occurs at a rate of 1,291 per 100,000, 34% below the national average.

Education

Educational attainment is solid, with 42.4% holding a bachelor's degree or higher, near the national average. 95.5% have completed high school. Area schools have an average test score of 5.5/10.

Climate & Weather

O'Fallon experiences four distinct seasons with an average temperature of 55°F. Winters average 29°F in January while summers reach 78°F in July. With 267 sunny days per year, residents enjoy well above the national average of sunshine. Annual precipitation totals 37.8 inches, including 6.5 inches of snow. Air quality is rated Good with a median AQI of 41.

O'Fallon has a population of 92,697 with a density of 3,034 people per square mile, spread across 30.6 square miles. The median age is 38.2 years, 2% younger than the national median of 38.9. The gender split is 50.8% female and 49.2% male. The city is predominantly White (82.5%), with 5.1% Black. English is the primary language spoken at home by 93.5% of residents, while 6.5% speak Spanish. 6.2% of the population are veterans. 9.9% of residents have a disability (below the 13.0% national average). 95.6% have health insurance coverage.

Population

92,697

Total Population

3,034

People / sq mi

38.2yrs

Median Age

2% below US avg

30.6mi²

Land Area

Gender Distribution

Male 49.2%

Female 50.8%

Race & Ethnicity

O'Fallon vs U.S. Average

Language Spoken at Home

English Only	93.5%
	19% above US avg
Spanish	6.5%
	51% below US avg

Social Characteristics

O'Fallon vs U.S. Average

The median household income in O'Fallon is $107,203, which is 43% above the national average of $75,149. Per capita income is $47,429 (above the $39,052 national figure). The unemployment rate is 1.9% (below the 3.6% US average). 2.7% of residents live below the poverty line, lower than the national rate of 12.4%. The cost of living index is 90.8, below the national baseline of 100 — offering relatively affordable living. Workers commute an average of 26 minutes. 15.7% of workers work from home.

Income: O'Fallon vs U.S.

Commute Mode

Income

Median HH Income	$107,203
	43% above US avg
Per Capita Income	$47,429

Employment & Poverty

Unemployment	1.9%
	47% below US avg
Poverty Rate	2.7%
	78% below US avg

Business (County)

Tax & Cost of Living


Cost of Living	90.80 (100=avg)

Commute & Transportation

Commute Time	25.6 min
Drive Alone	77.7%
Public Transit	0.1%
Work from Home	15.7%

Walkability

The median home value in O'Fallon is $305,100, 8% above the national median of $281,900. Homes sell for 100.3% of their list price, indicating a competitive market where bidding wars are common. Monthly rent averages $1,400 (20% above the national average of $1,163). Fair market rent ranges from $775 for a one-bedroom to $970 for a two-bedroom apartment. There are 34,965 total housing units in the city. The median year a home was built is 1999. 25.1% of renters spend 30% or more of their income on housing. The home price-to-income ratio is 2.8x, well within the affordable range.

Home Value Sources

Ownership Split

Home Values

Census Median	$305,100
	8% above US avg
Median List Price	$370,000

Real Estate Market (Redfin)

Median List Price	$370,000
$/Sq Ft	$174
Homes Sold	65
Sale-to-List Ratio	100.3%
Price Drops	30.0%
Inventory	90

Rental Costs

Census Median Rent	$1,400
	20% above US avg
Rent Burden	25.1%

HUD Fair Market Rent

Studio	$732
1 Bedroom	$775
2 Bedrooms	$970
3 Bedrooms	$1,265
4 Bedrooms	$1,457

Ownership & Property

Owner-Occupied	80.2%
Housing Units	34,965
Median Year Built	1999

Property Tax

In O'Fallon, 35.3% of adults are obese, above the national rate of 32.1%. 8.9% have diabetes. Heart disease affects 4.7% of residents, below the national average. 28.3% have high blood pressure. 12.6% are current smokers. 20.0% report binge drinking. 22.7% are physically inactive. 23.8% report depression (above the 20.0% national average). 16.4% experience frequent mental distress. 6.7% of residents lack health insurance (below the 8.6% national rate).

Health Metrics: O'Fallon vs U.S. Average (%)

Chronic Conditions

Obesity	35.3%
	10% above US avg
Diabetes	8.9%
Heart Disease	4.7%
High Blood Pressure	28.3%
Asthma	10.3%
COPD	5.2%
Cancer	7.6%
Stroke	2.5%

Behaviors & Mental Health

Smoking	12.6%
	10% below US avg
Binge Drinking	20.0%
Physical Inactivity	22.7%
Depression	23.8%
Mental Distress	16.4%
Physical Distress	11.4%
Short Sleep	40.3%

Healthcare Access

Insurance Rate	95.6%
Uninsured	6.7%
	22% below US avg
Checkup Rate	76.2%
Dental Visits	66.1%

Food & Exercise

O'Fallon has a violent crime rate of 72 per 100,000 residents, 81% below the national average of 380. This breaks down to aggravated assault at 50.3 per 100,000, robbery at 10.8, rape at 10.8. The murder rate is 0.0 per 100,000 (below the national rate of 6.3). Property crime stands at 1,291 per 100,000, 34% below the U.S. average. This includes larceny/theft at 1,142, burglary at 121, vehicle theft at 29 per 100,000 residents. Overall, O'Fallon receives a safety grade of F.

Crime Rates: O'Fallon vs U.S. Average (per 100,000)

Violent Crime

Total Violent	71.8/100K
	81% below US avg
Murder	0.0/100K
	100% below US avg
Rape	10.8/100K
Robbery	10.8/100K
Assault	50.3/100K

Property Crime

Total Property	1,291.4/100K
	34% below US avg
Burglary	120.9/100K
Theft	1,141.8/100K
Vehicle Theft	28.7/100K
Arson	1.2/100K

Traffic Safety

Safety Score

Safety Grade	F
Safety Score	1.0 / 5.0

O'Fallon experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 29°F in January while summers reach 78°F in July. The area gets 267 sunny days per year, well above the U.S. average of 205 — making it one of the sunnier locations in the country. Annual precipitation totals 37.8 inches. The area receives 6.5 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 548 feet.

Temperature

29°F Jan (-2°C) 78°F Jul (26°C)

Annual Average	54.7°F
	1% above US avg
January Average	29°F (-2°C)
July Average	78°F (26°C)
Sunny Days	267 days/yr

Precipitation & Snow

Annual Rainfall	37.8 inches
	1% below US avg
Snowfall	6.5 inches/yr

Air Quality

AQI Median	41.0
Rating	Good

Geography

Elevation	548 ft (167 m)
Area	30.6 sq mi (79.1 km²)
Population Density	3,034/sq mi
Coordinates	38.8106°N, 90.6999°W
Timezone	America/Chicago

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	29°F (-2°C)	1.8 in	Coldest, Driest
February	34°F (1°C)	2.1 in
March	44°F (7°C)	3.4 in
April	55°F (13°C)	3.7 in
May	64°F (18°C)	4.3 in	Wettest
June	73°F (23°C)	3.5 in
July	78°F (26°C)	3.9 in	Warmest
August	76°F (24°C)	3.2 in
September	68°F (20°C)	3.2 in
October	57°F (14°C)	3.0 in
November	45°F (7°C)	3.2 in
December	34°F (1°C)	2.6 in

O'Fallon has a seasonal temperature swing of 49°F — from 29°F in January to 78°F in July. Total annual precipitation is 37.8 inches, with May being the wettest month (4.3") and January the driest (1.8").

42.4% of adults hold a bachelor's degree or higher, 26% above the national average of 33.7%. 95.5% have completed high school. 15.1% hold a graduate or professional degree. Area schools have an average test score of 5.5 out of 10. In the 2024 presidential election, the county voted Republican with 76.6% of the vote, a 54.2-point margin. 94.3% of households have broadband internet access. The area has 3 EV charging stations. 77.7% of workers drive alone to work.

2024 Presidential Election (County)

R 76.6%

D 22.4%

Winner: Republican by 54.2 points

Education

Bachelor's Degree+	42.4%
	26% above US avg
High School+	95.5%
Graduate Degree+	15.1%
School Test Score	5.51

A Education Grade (4.4/5.0)

Urban-Rural Classification

Population Density	3,034/sq mi
Total Area	30.6 sq mi

Infrastructure & Services

Broadband Access	94.3%
EV Charging Stations	3
Alt Fuel Stations	4

Safety & Disasters

F Safety Grade (1.0/5.0)

Commute & Transportation

Avg Commute	25.6 min
Drive Alone	77.7%
Public Transit	0.1%
Work from Home	15.7%

Frequently Asked Questions About O'Fallon

What is the population of O'Fallon?

O'Fallon has a population of 92,697 residents and is located in Missouri. The population density is 3,034 people per square mile, spread across 30.6 square miles. The median age of residents is 38.2 years. The population is 50.8% female and 49.2% male.

Is O'Fallon expensive to live in?

O'Fallon is more affordable than the national average, with a cost of living index of 90.8 — below the baseline of 100. The median household income is $107,203, 43% above the national average of $75,149. The median home value is $305,100 (8% above the U.S. median). Renters pay a median of $1,400 per month, above the national average of $1,163. The home price-to-income ratio is 2.8x, indicating housing is reasonably affordable relative to local income levels.

Is O'Fallon safe?

O'Fallon is considered a very safe city with a violent crime rate of 72 per 100,000 residents, well below the national average of 380. Property crime occurs at a rate of 1,291 per 100,000 (below the national average). Overall, O'Fallon receives a safety grade of F based on combined crime data.

What is the weather like in O'Fallon?

O'Fallon has a four-season climate with an average annual temperature of 55°F (13°C). Winter temperatures average 29°F in January, while summers reach an average of 78°F in July. The area receives 267 sunny days per year, well above the national average of 205. Annual rainfall totals 37.8 inches, with 6.5 inches of snow. Air quality is rated Good with a median Air Quality Index (AQI) of 41.

How is the job market in O'Fallon?

The job market in O'Fallon is very strong, with unemployment at just 1.9% — well below the national rate of 3.6%. The average commute time is 26 minutes, and 15.7% of workers work from home.

How much does housing cost in O'Fallon?

The median home value in O'Fallon is $305,100. For renters, the median monthly rent is $1,400. Fair market rent is $775 for a 1-bedroom and $970 for a 2-bedroom apartment.

How are the schools in O'Fallon?

Schools in O'Fallon score 5.5 out of 10 on standardized testing, near the national average. 42.4% of adults in O'Fallon hold a bachelor's degree or higher, above the national average of 33.7%. 95.5% have completed high school. 15.1% hold a graduate or professional degree.

How healthy is O'Fallon?

The obesity rate in O'Fallon is 35.3% (above the national rate of 32.1%). 12.6% of adults are smokers. 22.7% are physically inactive. 23.8% of residents report depression. 6.7% lack health insurance (below the national rate).

What is transportation like in O'Fallon?

The average commute in O'Fallon is 26 minutes. 77.7% of workers drive alone to work, and 15.7% work from home.

What are the demographics of O'Fallon?

The racial and ethnic makeup of O'Fallon is 82.5% White, 5.1% Black or African American, 1% Hispanic or Latino. 93.5% of residents speak only English at home, while 6.5% speak Spanish. 6.2% of the population are military veterans. 9.9% of residents have a disability. 95.6% have health insurance coverage.

Nearby Cities

Dardenne Prairie, MO 13,137 pop · 3.2 mi Cottleville, MO 5,750 pop · 5.1 mi Lake St. Louis, MO 17,538 pop · 5.3 mi Weldon Spring, MO 5,291 pop · 6.7 mi Wentzville, MO 45,734 pop · 8.2 mi Chesterfield, MO 49,591 pop · 12.2 mi Winfield, MO 1,726 pop · 13.1 mi Clarkson Valley, MO 2,592 pop · 14.4 mi Moscow Mills, MO 3,647 pop · 15.1 mi Bridgeton, MO 11,372 pop · 15.8 mi Wildwood, MO 35,168 pop · 15.9 mi Maryland Heights, MO 27,981 pop · 16.0 mi Ellisville, MO 9,908 pop · 16.2 mi Ballwin, MO 30,835 pop · 17.0 mi

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