The Safest and Most Dangerous Places in San Lorenzo, CA
San Lorenzo is an unincorporated community of 25,800 in Alameda County, about 17 miles southeast of downtown San Francisco · Updated November 2026
Is San Lorenzo, CA safe?
Crime in San Lorenzo is high by national standards, with an overall CrimeGrade™ of C. Most US neighborhoods have little crime: 84% of Americans live in neighborhoods with less crime than San Lorenzo. Violent crime grades B- and property crime D. What matters most is the neighborhood: grades within San Lorenzo run from A- to F, so check the map below.
C
Overall CrimeGrade™
Safety score 451 of 1,000Less safe than most US neighborhoodsi What this means
16% of Americans live in neighborhoods with more crime than San Lorenzo as a whole, and 84% in neighborhoods with less. The typical US neighborhood has a safety score of 838, a CrimeGrade™ of A-. San Lorenzo scores 451.
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 San Lorenzo, CA at ISP Reports.
Who this page is for: homeowners and renters in San Lorenzo, 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 San Lorenzo
Thefts are less common than in most C-graded cities. San Lorenzo has 7.9 thefts a year per 1,000 residents; for the typical resident of a C-graded US city, the figure is 17.8.
Car thefts run high. San Lorenzo has car thefts at more than triple the US rate: 12.1 a year per 1,000 residents, against 2.7 nationally.
The safest and least safe parts of San Lorenzo
High crime is widespread across San Lorenzo: 51% of residents live in areas graded D or F, and 14% in areas graded A or B. Grades across San Lorenzo run from A- to F; every part of San Lorenzo has more crime than the typical US neighborhood.
14%35%51%
A or B 14%C 35%D or F 51%
Share of residents, by the overall CrimeGrade™ of the area they live in.
Within San Lorenzo, the southwest side has the least crime and the east side the most.
Crime rates and types in San Lorenzo
CrimeGrade™ estimates San Lorenzo has about 41 reported crimes a year for every 1,000 residents, 10% more than the US as a whole and close to California.
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 makes up about 35% of crime reported in San Lorenzo. Vehicle theft is less common but costs more, because each one does more harm.
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 San Lorenzo compares with nearby cities
San Lorenzo has less crime than 5 of its 10 nearest cities.
Empty homes, density and walkability in San Lorenzo
Two things set San Lorenzo apart: it has 2.3% of its homes standing empty, against 7.1% nationally, and 78% of its residents in dense blocks, against 24% nationally. Places with few empty homes tend to report less burglary, vandalism and arson, yet burglary and vandalism run higher here than that would suggest.
Empty homesSeasonal and vacation homes are left out. Places with many empty homes tend to report more burglary, vandalism and arson.2.3% of homesUS: 7.1%Lower than for 93% of US city residents
Residents in dense blocksBlocks of 10,000 or more people per square mile. Dense neighborhoods tend to report more robbery and car theft.78% of residentsUS: 24%Higher than for 92% 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. 73% of residents here live in car-dependent areas.D+ (23 of 100)US: 21Higher than for 69% of US city residents
Show all 6
Lit at nightSatellite images show which neighborhoods are lit at night, a sign of busy streets and businesses. Brightly lit places tend to report more theft and vandalism.100% where people liveUS: 78%Higher than for 92% of US city residents
Stores and restaurantsShops and restaurants draw crowds and parked cars. Places with many stores tend to report more theft.5.5 per 1,000 residentsUS: 10.5Lower than for 90% of US city residents
JobsJobs draw daytime crowds. Places with many jobs tend to report more theft and robbery.19 for every 100 residentsUS: 45Lower than for 88% of US city residents
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 San Lorenzo
Crime costs San Lorenzo about $1,859 a year per household, counting police, courts and prisons as well as victims' losses, 54% more 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 $39 million a year, or $1,532 per resident.
How the cost breaks down
Crime
Cost a year
Per resident
Murder
$2.1 million
$81
Rape
$350,000
$14
Robbery
$880,000
$34
Assault
$4.3 million
$168
Burglary
$390,000
$15
Theft
$1.0 million
$40
Vehicle theft
$4.8 million
$185
Arson
$76,000
$3
Vandalism
$630,000
$25
Total
$15 million
$564
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 San Lorenzo 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 San Lorenzo, CA average a SchoolGrade of C-: 32% of students test proficient, against 32% projected for schools like them. Overall, they meet expectations. See schools in San Lorenzo on SchoolGrade
