O'Fallon, MO: Local News, Events & Neighbors

O'Fallon ( oh-FAL-ən) is a city in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area, along Interstates 64 and 70 between Lake St. Louis and St. Peters. As of the 2020 census, O'Fallon had a population of 91,316, making it St. Louis's most populous suburb as well as the most populous municipality in St. Charles County and the 7th-most populous in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis region. The two cities are one of the few pairs of same-named municipalities to be part of the same metro area.

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How O'Fallon ranks

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#9Safest in MO #24Highest income in MO #26Best schools in MO All MO rankings →

Town numbers

ZIP code63366, 63368

Area code636

Living in O'Fallon

Housing in O'Fallon

$380K▲ 1.7% in a year Typical home value · Zillow

The typical O'Fallon home is worth about $380,000, up 1.7% in a year, 42% above the Missouri typical home.

A strong seller's market

Buyer’sBalancedSeller’s

Days on market8

Sale-to-list101.3%

Sold in May110

Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in O'Fallon

A⁻

Safety Grade A-

O'Fallon reports less crime per resident than 80% of the U.S. towns and cities we grade.

Violent crime per 1,000

O'Fallon 1

Missouri 4.3

U.S. 3.3

Property crime per 1,000

O'Fallon 5.2

Missouri 16.9

U.S. 15.5

FBI crime data, 2025 · crimes reported to policeCrime & safety →

Health in O'Fallon

Compared with Missouri

17better than MO

of 32 measures CDC estimates. The other 15 are too close to call.

Conditions 7▲ 5 close Habits 2▲ 2 close Care 2▲ 5 close Mind 2▲ 3 close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

10.2%Fewer older adults who have lost all their teethMO 15.8% · better 9%Fewer adults facing food insecurityMO 13.7% · better

Care nearby

Ssm St. Joseph Hospital WestLake Saint Louis · 3.4 mi · ER

Compass HealthSaint Peters · 2.8 mi · sliding-scale fees

Primary careNo shortage

DentalNo shortage

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for O'Fallon · CMS · HRSAHealth in O'Fallon →

Schools in O'Fallon

All O'Fallon schools →

A

School Grade A

The public schools O'Fallon’s kids attend, from kindergarten through graduation, outperform 89% of Missouri’s districts on state tests and graduation. Among towns with similar incomes, they rank near the top.

#26Best public schoolsof 226 in MO

DistrictFORT ZUMWALT SCHOOL DISTRICTSchools28

Crossroads Elem. AElementary · Grades K–5 · 757 students Progress South Elem. AElementary · Grades K–5 · 642 students Discovery Ridge Elementary AElementary · Grades PK–5 · 590 students Westhoff Elem. A-Elementary · Grades K–5 · 534 students Twin Chimneys Elem. AElementary · Grades K–5 · 488 students Dardenne Elem. B+Elementary · Grades K–5 · 445 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within MO. Ratings are from neighbors.

Famous people from O'FallonWriters, athletes, leaders and more who were born in O'Fallon.Meet them →

Where O'Fallon is

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Locator map of O'Fallon — Wikimedia Commons · Map: The original uploader was Catbar at English Wikipedia. · CC BY-SA 3.0

Location map

Missouri · MOTown boundary on OpenStreetMap →

Around town

Bordering towns

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How things work in O'Fallon

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