The Safest and Most Dangerous Places in Cahokia, IL
Cahokia is a community of 11,800 in St. Clair County, about 5 miles south of downtown St. Louis · Updated November 2026
Is Cahokia, IL safe?
Crime in Cahokia is moderate, with an overall CrimeGrade™ of B+. Most US neighborhoods have little crime: 64% of Americans live in neighborhoods with less crime than Cahokia. Property crime grades better than violent crime here, A against B. Its neighborhoods are much alike, from A- to B; see the map below.
B+
Overall CrimeGrade™
Safety score 754 of 1,000Less safe than most US neighborhoodsi What this means
36% of Americans live in neighborhoods with more crime than Cahokia as a whole, and 64% in neighborhoods with less. The typical US neighborhood has a safety score of 838, a CrimeGrade™ of A-. Cahokia scores 754.
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 Cahokia, IL at ISP Reports.
Who this page is for: homeowners and renters in Cahokia, 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 Cahokia
Thefts are uncommon. Cahokia has thefts at a small fraction of the US rate: 3.8 a year per 1,000 residents, against 13.1 nationally.
The safest and least safe parts of Cahokia
Every part of Cahokia where people live grades A or B on the national scale. Grades across Cahokia run from A- to B; 17% of residents live in areas with less crime than the typical US neighborhood.
100%
A or B 100%
Share of residents, by the overall CrimeGrade™ of the area they live in.
Within Cahokia, the east side has the least crime and the north side the most.
Crime rates and types in Cahokia
CrimeGrade™ estimates Cahokia has about 18 reported crimes a year for every 1,000 residents, 52% less than the US as a whole and 58% less than Illinois.
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.
Assault is the most common crime in Cahokia, about 40% 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.
How Cahokia compares with nearby cities
Cahokia has less crime than 5 of its 8 nearest cities.
Two things set Cahokia apart: it has 28.2% of its homes standing empty, against 7.1% nationally, and 20 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 runs high here.
Empty homesSeasonal and vacation homes are left out. Places with many empty homes tend to report more burglary, vandalism and arson.28.2% of homesUS: 7.1%Higher than for 99% of US city residents
JobsJobs draw daytime crowds. Places with many jobs tend to report more theft and robbery.20 for every 100 residentsUS: 45Lower than for 87% of US city residents
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. 91% of residents here live in car-dependent areas.D- (12 of 100)US: 21Lower than for 70% of US city residents
Show all 6
Residents in dense blocksBlocks of 10,000 or more people per square mile. Dense neighborhoods tend to report more robbery and car theft.2% of residentsUS: 24%Lower than for 87% of US city residents
Parking lotsBig lots at stores, offices and apartment complexes. Places with more lot space tend to report more theft.2.8 spaces per residentUS: 2.0Higher than for 80% of US city residents
Stores and restaurantsShops and restaurants draw crowds and parked cars. Places with many stores tend to report more theft.7.1 per 1,000 residentsUS: 10.5Lower than for 80% of US city residents
BestNeighborhood, a sister site of CrimeGrade™, ranks the neighborhoods of Cahokia on shops, parks, home prices, getting around and more.
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 Cahokia
Counting police, courts and prisons as well as victims' losses, crime costs Cahokia about $1,030 a year per household, 15% less than 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 $19 million a year, or $1,583 per resident.
How the cost breaks down
Crime
Cost a year
Per resident
Murder
$1.5 million
$132
Rape
$180,000
$15
Robbery
$170,000
$15
Assault
$1.3 million
$109
Burglary
$180,000
$15
Theft
$230,000
$20
Vehicle theft
$350,000
$30
Arson
$99,000
$8
Vandalism
$180,000
$15
Total
$4.2 million
$359
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 Cahokia 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. Cahokia is the other kind of example: few people work in, shop in or visit it, so its crime per resident looks lower than its CrimeGrade™ suggests.
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 Cahokia, IL average a SchoolGrade of F: 19% of students test proficient, against 13% projected for schools like them. Overall, they underperform expectations. See schools in Cahokia on SchoolGrade
