Ruby is a township of 442 in St. Clair County, about 55 miles northeast of downtown Detroit · Updated November 2026
Is Ruby, MI safe?
Yes. Crime is low across most of the US, and lower still in Ruby: an overall CrimeGrade™ of A+, safer than the neighborhoods where 92% of Americans live. Violent and property crime both grade A+ here.
A+
Overall CrimeGrade™
Safety score 965 of 1,000Safer than nearly all US neighborhoodsi What this means
92% of Americans live in neighborhoods with more crime than Ruby as a whole, and 8% in neighborhoods with less. The typical US neighborhood has a safety score of 838, a CrimeGrade™ of A-. Ruby scores 965.
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 Ruby, MI at ISP Reports.
Who this page is for: homeowners and renters in Ruby, 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 Ruby
Car thefts happen at homes far more often than nationally. In Ruby, 65% of reported car thefts happen at homes, against 33% nationally.
Crime rates and types in Ruby
CrimeGrade™ estimates Ruby has about 12 reported crimes a year for every 1,000 residents, 67% less than the US as a whole and 65% less than Michigan.
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 Ruby is assault, about 53% 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.
Where and when crime happens in Ruby
The St. Clair County Sheriff's Office polices Ruby, and these figures cover every place it serves, 2022 to 2024.
In Ruby, 76% of burglaries hit homes, against 57% nationally. Thefts from cars happen most often at homes: 56% of them, against 34% nationally.
Crime
Most often at
Busiest time
Burglary
Homes (76%)
Afternoon (noon to 6 pm)
Car theft
Homes (65%)
Afternoon (noon to 6 pm)
Theft from cars
Homes (56%)
Morning (6 am to noon)
Vandalism
Homes (60%)
Afternoon (noon to 6 pm)
Aggravated assault
Homes (72%)
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 Ruby compares with nearby cities
Ruby has the least crime of its 10 nearest cities.
Crime costs Ruby about $497 a year per household, counting police, courts and prisons as well as victims' losses, 59% 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 $270,000 a year, or $622 per resident.
How the cost breaks down
Crime
Cost a year
Per resident
Murder
$15,000
$34
Rape
$9,600
$22
Robbery
$170
under $1
Assault
$31,000
$71
Burglary
$3,900
$9
Theft
$3,600
$8
Vehicle theft
$1,800
$4
Arson
$1,500
$3
Vandalism
$7,300
$16
Total
$74,000
$168
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 Ruby 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 Ruby, MI average a SchoolGrade of B: 43% of students test proficient, against 41% projected for schools like them. Overall, they meet expectations. See schools in Ruby on SchoolGrade
