Thornton is a village of 2,180 in Cook County, about 20 miles south of downtown Chicago · Updated November 2026
Is Thornton, IL safe?
Yes, crime in Thornton is low, with an overall CrimeGrade™ of A-. Because most US neighborhoods are safe as well, Thornton sits near the middle: safer than the neighborhoods where 48% of Americans live. Violent crime grades A and property crime A-.
A-
Overall CrimeGrade™
Safety score 830 of 1,000About as safe as the typical US neighborhoodi What this means
48% of Americans live in neighborhoods with more crime than Thornton as a whole, and 52% in neighborhoods with less. The typical US neighborhood has a safety score of 838, a CrimeGrade™ of A-. Thornton scores 830.
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 Thornton, IL at ISP Reports.
Who this page is for: homeowners and renters in Thornton, 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 Thornton
Burglary stands out among A-graded cities. For the typical resident of an A-graded US city, the figure is 1.2 burglaries a year per 1,000 residents; Thornton has 7.5.
Crime rates and types in Thornton
CrimeGrade™ estimates Thornton has about 44 reported crimes a year for every 1,000 residents, 20% more than the US as a whole and close to 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.
The largest share of crime reported in Thornton is assault, about 29% of the total. It also makes up the largest share of what crime costs here.
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 Thornton compares with nearby cities
Thornton has the least crime of its 10 nearest cities.
Counting police, courts and prisons as well as victims' losses, crime costs Thornton about $956 a year per household, 21% 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 $2.3 million a year, or $1,051 per resident.
How the cost breaks down
Crime
Cost a year
Per resident
Murder
$110,000
$52
Rape
$55,000
$25
Robbery
$49,000
$22
Assault
$250,000
$116
Burglary
$150,000
$67
Theft
$120,000
$55
Vehicle theft
$94,000
$43
Arson
$4,600
$2
Vandalism
$150,000
$68
Total
$980,000
$450
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 Thornton 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 Thornton, IL average a SchoolGrade of D: 33% of students test proficient, against 15% projected for schools like them. Overall, they exceed expectations. See schools in Thornton on SchoolGrade
