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Living in
O'Fallon.
About
Life in O'Fallon
Living in O'Fallon puts you in Missouri's largest suburb—a genuinely established community of over 92,000 people where the median household income sits comfortably at $110,443, which is well above national averages and reflects a stable, affluent demographic. The job market here is solid, anchored by major employers like Mastercard and supported by a low 3.1% unemployment rate, though most residents commute about 25 minutes to jobs in the broader St. Louis metro area rather than finding everything locally.
O'Fallon at a Glance
Population, income, housing and more
Median Age
38.4 yrs
Poverty Rate
5.4%
Foreign-Born
6.3%
Broadband Internet
94.9%
of households
Population Growth
+5.2%
recent change · Census Bureau
Median household income
Demographics6.3% foreign-born, most often from India
Who lives in O'Fallon: race and ethnicity, ages, households, languages and countries of origin
In O'Fallon, the largest foreign-born group is from India (29.9%), and 2.5% of residents speak Spanish at home.
Under 18
24.2%
of residents
65 and Older
14.5%
of residents
Households with Kids
36.7%
anyone under 18
Living Alone
22.9%
of households
Married Couples
57.2%
of households
Avg Household Size
2.63
people
Race & Ethnicity
Hispanic or Latino of any race; other groups are non-Hispanic
Top countries of origin (foreign-born)
Languages Spoken at Home
Cost of Livingrent 40% above MO average
Rent, home values, and income in O'Fallon
In O'Fallon, rent runs 40% above the MO average, and home values are 42% above the MO average.
Median rent (per month)
Median home value
Rent Burdened
39.8%
spending 30%+ of income on rent
Severely Rent Burdened
21.3%
spending 50%+
Cost of Living Index
95.1
metro area (BEA) · US avg = 100
Median Property Tax
$3,609
per year, owner-occupied homes
Homeowners
81.0%
of occupied homes are owned
Typical Home Built
2000
median year built
Vacant Homes
2.0%
of housing units
Home Value Trend
Latest: $378,128 (September 2026)
Jobs & Economyunemployment 0.9 pts below MO average
Unemployment in O'Fallon and typical pay across the metro area
Unemployment in O'Fallon is 0.9 percentage points lower than the MO average.
Unemployment rate
City-level rate · BLS annual average
Unemployment Rate — 10 Year Trend
City-level (BLS) · Annual averages
What O'Fallon Residents Do for Work · share of employed residents by industry
City residents, wherever they work
Median Salary by Occupation · metro area
St. Louis, MO-IL metro area
Commute25.5 min avg
How O'Fallon residents get to work, and the nearest airports
In O'Fallon, most residents drive alone to work (75%), and 60% get there in under 30 minutes.
How People Get to Work
Commute Time Distribution
Nearest airports · with airline service
- 18 mi
St. Louis Lambert International Airport (STL)
Medium hub7.5M passengers boarded in 2025
Straight-line distance. Size is the FAA’s hub category, based on passenger traffic: regional airports may have only a few flights a day.
Safetyviolent crime 71% below national average
Crime rates for 2025
Violent crime in O'Fallon runs 71% below the national average.
Violent Crime Rate
96.6
per 100,000 residents
Below average (329 national, 2025)
Property Crime Rate
529.6
per 100,000 residents
Below average (1,552 national, 2025)
O'Fallon Police Department
Natural DisastersThunderstorm Wind most common — 20 events in 2025
Natural hazard risk, storms and earthquakes
FEMA National Risk Index
Relatively Moderate
92.6 / 100
Compares expected losses from natural hazards, social vulnerability and community resilience against every US county (higher = more risk).
St. Charles County, county-wide · FEMA NRI December 2025
In St. Charles County, which includes O'Fallon, the most common type is thunderstorm wind, with 20 recorded events in 2025.
Most common events:
Storm events by year
| Year | Events | Top Type | Property Damage |
|---|---|---|---|
| 2025 | 20 | Hail | $292,000 |
| 2024 | 10 | Hail | $20.0M |
| 2023 | 10 | Thunderstorm Wind | $15,000 |
| 2022 | 9 | Thunderstorm Wind | $10.1M |
| 2021 | 15 | Thunderstorm Wind | $3.4M |
| 2020 | 9 | Thunderstorm Wind | None reported |
| 2019 | 23 | Thunderstorm Wind | $1.1M |
| 2018 | 12 | Thunderstorm Wind | $34,000 |
Property damage is the National Weather Service's estimate filed with each event. “None reported” means the events were logged with $0 damage; “Not estimated” means no estimate was filed. Storms covering several counties aren't counted here, since NOAA doesn't split their damage by county.
1 earthquake of magnitude 2.5+ within 100 miles in the past year
St. Charles County, county-wide
Air Quality41 median AQI — Good
Days by air quality category (2025)
Air quality in Lincoln County, MO (the nearest EPA-monitored county, about 23 miles from O'Fallon) is typically good — 210 good-air days per year.
Median AQI
41
Good Days
210
per year
Moderate Days
34
per year
Unhealthy Days
0
per year
Nearest EPA monitor county: Lincoln County, MO (23 mi away)
Climate86°F summers, 24°F winters
30-year climate averages (1991–2020) — monthly temperatures and precipitation
O'Fallon has warm summers (avg high 86°F) and cold winters (avg low 24°F).
Spring (Mar–May)
66°/44°F
avg high / low
Summer (Jun–Aug)
86°/65°F
avg high / low
Fall (Sep–Nov)
68°/46°F
avg high / low
Winter (Dec–Feb)
43°/24°F
avg high / low
Annual Precipitation
44.4"
Annual Snowfall
13.5"
Hot Days/Year
36
days above 90°F
Freeze Days/Year
105
days below 32°F
Rainy Days/Year
107
Average month
Show month-by-month table ↓Hide table ↑
| Month | High | Low | Precip |
|---|---|---|---|
| Jan | 39°F | 21°F | 2.61" |
| Feb | 45°F | 24°F | 2.43" |
| Mar | 55°F | 33°F | 3.74" |
| Apr | 67°F | 44°F | 4.70" |
| May | 76°F | 54°F | 5.09" |
| Jun | 84°F | 63°F | 4.72" |
| Jul | 88°F | 67°F | 3.92" |
| Aug | 87°F | 65°F | 3.58" |
| Sep | 80°F | 57°F | 3.50" |
| Oct | 68°F | 46°F | 3.37" |
| Nov | 55°F | 35°F | 3.69" |
| Dec | 44°F | 26°F | 3.07" |
Healthcare1 hospital, avg 4.0/5
Hospitals, ratings, and health insurance in O'Fallon
O'Fallon has 1 hospital, averaging 4.0 out of 5 on CMS's quality rating — above-average care.
Hospitals
1
within city limits
Uninsured
3.9%
of residents
Avg Hospital Rating
4.0 / 5
Progress West Hospital
Acute Care Hospitals · ER available
Nearby hospitals · within 15 miles
Ssm St Joseph Hospital West
Acute Care Hospitals · ER available · 3.3 mi away · Lake Saint Louis
Centerpointe Hospital
Psychiatric · 5.4 mi away · Saint Charles
Barnes-jewish St Peters Hospital
Acute Care Hospitals · ER available · 7.8 mi away · Saint Peters
Adult Health · vs. the typical US place
Share of adults. Modeled estimates, not counted cases. “US” = the typical US place.
Medicare-certified hospitals only. Doesn’t include clinics, urgent care, or freestanding ERs.
Education13.4:1 student/teacher ratio
Schools and degree attainment in O'Fallon
O'Fallon's student/teacher ratio is 13.4:1 (lower than the national average of 16:1), and 43.3% of adults 25+ hold a bachelor's degree or higher.
Public Schools
23
within city limits
Private Schools
6
within city limits
College Degree Rate
43.3%
adults 25+ with bachelor's or higher
Student/Teacher Ratio
13.4:1
National avg 16:1
Schools located within city limits (2023) — school-level metrics change slowly year to year
Colleges Near O'Fallon (within 15 miles)
Private nonprofit · 4-year · 4,624 students · in-state tuition $22,794 · 56% graduate · median earnings $58,321 (10 yrs after entry)
Private nonprofit · 4-year · 472 students · in-state tuition $9,116 · 56% graduate
Private nonprofit · 4-year · 229 students · in-state tuition $10,800 · 55% graduate · median earnings $59,488 (10 yrs after entry)
Degree-granting colleges with 100+ students, placed by campus location (main campuses only — branch campuses are reported under their parent school)
Parks & Recreationclosest: Ulysses S Grant National Historic Site, 26 mi
Nearby national parks, recreation areas and public libraries for O'Fallon
O'Fallon has 6 nearby national parks or recreation areas, closest being Ulysses S Grant National Historic Site (26 mi away).
Nearby National Parks & Recreation Areas
Ulysses S Grant National Historic Site
National Historic Site
26 mi awayGateway Arch National Park
National Park
31 mi awayNew Philadelphia National Historic Site
National Historic Site
64 mi awaySte. Geneviève National Historical Park
National Historical Park
67 mi awayLincoln Home National Historic Site
National Historic Site
91 mi awaySpringfield 1908 Race Riot National Monument
National Monument
91 mi awayPublic Libraries in O'Fallon
Deer Run Branch
1300 N Main St, O'Fallon
Middendorf-Kredell Branch
2750 Highway K, O'Fallon
Winghaven Branch
7435 Village Center Dr, O'Fallon
Cities Near O'Fallon
The closest cities within 60 miles
Planning a move to O'Fallon?
Read our full moving guide — what it's really like to live here.
O'Fallon FAQ
Is O'Fallon, Missouri affordable?⌄
O'Fallon's median rent is $1,443/month, which is close to the national average. The median household income is $110,443/year. Median home value is $326,200.
Is O'Fallon, Missouri safe?⌄
O'Fallon's violent crime rate was 97 per 100,000 residents in 2025, which is well below the national average — one of the safer cities in the country of 329/100k that year. Property crime rate is 530 per 100,000. As with any city, crime rates vary by neighborhood.
What is the job market like in O'Fallon, Missouri?⌄
O'Fallon has an unemployment rate of 3.1%, which is solid, slightly below the national average of 4.3%.
What is the cost of living in O'Fallon, Missouri?⌄
The cost of living in O'Fallon is primarily driven by housing. Median rent is $1,443/month and median household income is $110,443/year. The median home value is $326,200. About 40% of renters spend more than 30% of their income on housing.
How is the commute in O'Fallon, Missouri?⌄
The average commute in O'Fallon is 26 minutes, which is about average compared to the national average of 26 minutes.
Data from the US Census Bureau, BLS, FBI, NOAA, EPA, Zillow Research and other public sources. Where our data comes from