O'Fallon is a neighborhood of 3,210 residents in St. Louis, about 4 miles northwest of downtown · Updated November 2026
Is O'Fallon in St. Louis safe?
O'Fallon is among the higher-crime places in the US: an overall CrimeGrade™ of F, with more crime than the neighborhoods where 99% of Americans live. Violent and property crime both grade F here. St. Louis as a whole grades F. Every neighborhood in O'Fallon grades F.
F
Overall CrimeGrade™
Safety score 0 of 1,000Less safe than nearly all US neighborhoodsi What this means
1% of Americans live in neighborhoods with more crime than O'Fallon as a whole, and 99% in neighborhoods with less. The typical US neighborhood has a safety score of 838, a CrimeGrade™ of A-. O'Fallon scores 0.
Crime is concentrated in a small share of places, so most neighborhoods score high on the 0 to 1,000 scale. That is why a score in the 800s can still mean more crime than most US neighborhoods.
How to read the map: each area's color compares its crime with the people, homes and cars there, on one national scale, from green for the least crime to red for the most. Each area gets its own color, so a busy shopping center can show red while the homes beside it stay green. The interactive maps load faster on a strong connection. Compare high speed internet in O'Fallon, St. Louis, MO at ISP Reports.
Who this page is for: homeowners and renters in O'Fallon in St. Louis, and anyone thinking about buying or renting a home there.
Business and enterprise customers: this free map shows neighborhood areas. CrimeGrade™ business reports map crime at about 66-meter detail and estimate it for one address and type of business. See business reports
What stands out in O'Fallon
Burglaries run high for an F-graded neighborhood. O'Fallon has 11.1 burglaries a year per 1,000 residents; for the typical resident of an F-graded US neighborhood, the figure is 4.6.
Car thefts and aggravated assaults both run high. In O'Fallon, each runs at more than triple the US rate: 15.6 car thefts and 10.9 aggravated assaults a year per 1,000 residents, against 2.7 and 2.6 nationally.
Crime rates and types in O'Fallon
CrimeGrade™ estimates O'Fallon has about 114 reported crimes a year for every 1,000 residents, about triple the rate for the US as a whole and 23% more than St. Louis as a whole.
Overall crime
Violent crime
Property crime
Reported crimes a year, per 1,000 residents. These figures include simple assaults and vandalism, which the FBI's violent and property crime rates leave out.
Theft is the most common crime in O'Fallon, about 28% of everything reported.
Each CrimeGrade™ compares a crime with what it affects: people for assaults and robbery, homes for burglary, parked cars for vehicle theft. Rates count crimes per 1,000 residents.
Select a crime's name to see its map above. CrimeGrade™ business reports map each crime at about 66-meter detail.
Where and when crime happens in St. Louis
The St. Louis Police Department polices O'Fallon; these figures cover St. Louis as a whole, 2022 to 2024.
In St. Louis as a whole, 56% of burglaries hit homes, against 57% nationally. Thefts from cars happen most often on streets and sidewalks: 54% of them, against 18% nationally.
Crime
Most often at
Busiest time
Burglary
Homes (56%)
Afternoon (noon to 6 pm)
Car theft
Streets and sidewalks (73%)
Evening (6 pm to midnight)
Theft from cars
Streets and sidewalks (54%)
Evening (6 pm to midnight)
Vandalism
Streets and sidewalks (45%)
Evening (6 pm to midnight)
Robbery
Streets and sidewalks (56%)
Evening (6 pm to midnight)
Aggravated assault
Streets and sidewalks (45%)
Evening (6 pm to midnight)
Shares of the crimes reported to police, 2022 to 2024. Reports with no time recorded are left out of the times.
How O'Fallon compares with nearby neighborhoods
O'Fallon has more crime than 9 of its 10 nearest neighborhoods. Central West End and Midtown St. Louis have the least crime nearby.
Two things set O'Fallon apart: it has 30.2% of its homes standing empty, against 7.1% nationally, and 5 jobs for every 100 residents, against 45 for the US as a whole. Places with many empty homes tend to report more burglary, vandalism and arson, and burglary and vandalism run high here.
Empty homesSeasonal and vacation homes are left out. Places with many empty homes tend to report more burglary, vandalism and arson.30.2% of homesUS: 7.1%Higher than for 99% of residents of US city neighborhoods
JobsJobs draw daytime crowds. Places with many jobs tend to report more theft and robbery.5 for every 100 residentsUS: 45Lower than for 98% of residents of US city neighborhoods
Walk GradeBestNeighborhood's grade for getting through daily life on foot, traced along real walking routes to shops, schools and parks. Walkable places tend to report more theft and assault.B (58 of 100)US: 21Higher than for 70% of residents of US city neighborhoods
Show all 4
Parking lotsBig lots at stores, offices and apartment complexes. Places with more lot space tend to report more theft.0.2 spaces per residentUS: 2.0Lower than for 84% of residents of US city neighborhoods
These traits tend to go with more or less crime; none of them causes it on its own. Sources: Census job counts and housing figures, OpenStreetMap and Overture business listings, CrimeGrade™ parking estimates, NASA night-light imagery, US Forest Service tree cover, EPA transit data and BestNeighborhood's Walk Grade.
What crime costs O'Fallon
Crime costs O'Fallon about $7,593 a year per household, counting police, courts and prisons as well as victims' losses, more than triple the US figure of $1,205.
Cost of crime per resident, per year
Counting the pain and suffering of victims, which comes almost entirely from violent crime, the full cost comes to about $51 million a year, or $15,766 per resident.
How CrimeGrade™ works
A CrimeGrade™ shows how much crime an area has compared with the rest of the country, from A+ for the least crime to F for the most. Every neighborhood in the US is graded on the same scale, so a B in O'Fallon means the same as a B anywhere else.
CrimeGrade™ starts from the crimes people report to police and measures each kind of crime against what it affects: people for assaults, homes for burglaries, parked cars for car thefts.
The rates on this page count crimes for every 1,000 people who live here, the way police departments report them.
Comparisons with US neighborhoods use the Census Bureau's block groups, small areas of about 1,400 residents, and count the people who live in each. The figures count crimes reported to police; many crimes, shoplifting above all, never are. Behind the grades, CrimeGrade™ tested 21,607 factors from 125 data families. For business owners, paid CrimeGrade™ location reports estimate crime at a single address for each type of business.
Where the numbers come from
Crime reports that police departments file with the FBI
State crime records and city crime data, where they are published
Published research on what crime costs victims and communities
These are estimates of reported crime for whole areas, not a record of what happened on any one street. CrimeGrade™ updates them once a year and provides them free and without guarantee. Check local sources before you rely on them for a decision.
Schools in O'Fallon, St. Louis, MO average a SchoolGrade of F: 2% of students test proficient, against 10% projected for schools like them. Overall, they underperform expectations. See schools in O'Fallon on SchoolGrade
