Diamond Bar, CA Crime Rate & Safety
Lower crime than 52% of major U.S. cities
Based on FBI UCR & local law enforcement data · Updated April 2026
Is Diamond Bar Safe?
Mostly yes — Diamond Bar is fairly safe
Crime is slightly below the national average, though some areas may vary.
Diamond Bar has a crime rate that is 22% below the national average. Your chance of becoming a victim of violent crime is 1 in 99.
Crime Index Comparison
100 = national average. Calibrated to reflect actual crime severity.
Your Chance of Being a Victim
Violent Crime
1 in 99
chance per year
National average: 1 in 263
167% higher than national average
Property Crime
1 in 47
chance per year
National average: 1 in 55
17% higher than national average
Want to know the crime risk at your exact address?
Diamond Bar Crime Breakdown
Estimated crime rates based on FBI UCR data, calibrated to city-level crime score.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
97 | -3% | Average | |
|
Assault
|
143 | +43% | Moderate | |
|
Robbery
|
608 | +508% | Very High | |
|
Rape
|
530 | +430% | Very High | |
| Property Crime | ||||
|
Burglary
|
189 | +89% | Moderate | |
|
Larceny / Theft
|
60 | -40% | Low | |
|
Vehicle Theft
|
249 | +149% | High | |
Violent vs Property Crime
Crime Index by Category
Diamond Bar Crime Map
Neighborhood-level crime heatmap. Click any area for details.
See the crime score for a specific address
Diamond Bar Crime by Zip Code
Explore crime data for specific Diamond Bar zip codes.
Diamond Bar Demographics & Context
Racial Demographics
Frequently Asked Questions
What is the crime rate in Diamond Bar, CA?
Diamond Bar, CA has a crime safety grade of B- as of 2026. The overall crime rate is estimated to be 22% below the national average. Residents face approximately a 1 in 99 chance of being a victim of violent crime per year and a 1 in 47 chance for property crime. Diamond Bar has lower crime than 52% of major U.S. cities (population 50,000+).
Is Diamond Bar, CA safe to live in?
Diamond Bar is generally considered a safe place to live, earning a crime grade of B-. However, safety varies significantly by neighborhood. Researching specific neighborhoods before moving to or visiting Diamond Bar is strongly recommended.
What is the violent crime rate in Diamond Bar?
The estimated violent crime rate in Diamond Bar is 1,015.2 per 100,000 residents, which is 167% higher than the national average. This means residents have roughly a 1 in 99 chance of becoming a violent crime victim each year. Key violent crime rates include: murder at 4.8 per 100K (3% below average); aggravated assault at 383.0 per 100K (43% above average); robbery at 449.4 per 100K (508% above average).
What is the property crime rate in Diamond Bar?
The estimated property crime rate in Diamond Bar is 2,142.1 per 100,000 residents, which is 17% higher than the national average. Residents have roughly a 1 in 47 chance of being a property crime victim per year. Key property crime rates include: burglary at 509.6 per 100K (89% above average); larceny/theft at 839.5 per 100K (40% below average); vehicle theft at 793.0 per 100K (149% above average).
How does Diamond Bar crime compare to the national average?
Diamond Bar's overall crime rate is 22% below the national average as of 2026. The biggest concern is robbery (508% above average), while larceny/theft is 40% below average. Compared to other major U.S. cities, Diamond Bar has lower crime than 52% of them.
Is Diamond Bar safe to visit?
Diamond Bar is generally safe for visitors and tourists. Property crime (theft, vehicle break-ins) is 17% above average, which is typically the main concern for tourists. Avoid leaving valuables in vehicles, stay aware of your surroundings in unfamiliar areas, and stick to well-traveled neighborhoods.
How does Diamond Bar crime compare to the rest of California?
California as a whole has crime that is 9% above the national average. Diamond Bar's crime rate is 22% below the national average, making it safer the typical California city.
What type of crime is most common in Diamond Bar?
Larceny/theft is the most common crime in Diamond Bar, with an estimated rate of 839.5 incidents per 100,000 residents. This is 40% below the national average for this crime type. Overall, property crime (2,142 per 100K) is more prevalent than violent crime (1,015 per 100K) in Diamond Bar, which is consistent with national trends.