South Diamond Bar Neighborhood, Brea
Crime Rate & Statistics
One of the safest neighborhoods — significantly below-average crime
Safer than 50% of neighborhoods in Brea
Safety at a Glance
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in Brea
Is South Diamond Bar Safe?
Yes — this neighborhood is extremely safe. South Diamond Bar in Brea, CA has a safety grade of A+. The overall crime index is 9, which is 91% below the national average of 100. South Diamond Bar is safer than 50% of neighborhoods in Brea.
Compared to the Brea average (crime index 9), South Diamond Bar is 0% lower in overall crime. Crime levels here are roughly in line with the city average.
Looking at specific crime types, robbery is the most elevated concern (index: 166, 66% above average), while murder is the lowest risk (index: 1). Violent crime is a particular area of concern relative to property crime in this neighborhood.
South Diamond Bar Crime Breakdown
Crime indices compared to national average (100) and Brea city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
1 | -99% | Low | |
|
Assault
|
15 | -85% | Low | |
|
Robbery
|
166 | +66% | High | |
|
Rape
|
151 | +51% | High | |
| Property Crime | ||||
|
Burglary
|
12 | -88% | Low | |
|
Larceny / Theft
|
2 | -98% | Low | |
|
Vehicle Theft
|
57 | -43% | Low | |
How South Diamond Bar Compares
Crime index by category: South Diamond Bar vs Brea average vs national average.
Crime by Category
Overall Crime Comparison
South Diamond Bar Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
See the crime score for a specific address
South Diamond Bar Demographics & Context
Education
Housing
Racial Demographics
Nearby Neighborhoods
Frequently Asked Questions
What is the crime rate in South Diamond Bar, Brea?
South Diamond Bar in Brea, CA has a crime safety grade of A+ as of 2026. The overall crime index is 9, which is 91% below the national average. Compared to the Brea average, crime in South Diamond Bar is 0% lower. South Diamond Bar is safer than 50% of neighborhoods in Brea.
Is South Diamond Bar a safe neighborhood in Brea?
South Diamond Bar is generally considered a safe neighborhood in Brea, earning a crime grade of A+. The highest concern is Robbery (index: 166), while Murder is the lowest risk (index: 1). It is one of the safest neighborhoods in Brea.
How does South Diamond Bar compare to the rest of Brea?
South Diamond Bar's overall crime index is 9, compared to the Brea average of 9. This means crime in South Diamond Bar is 0% lower than the city average. For violent crime, the index is 83, and for property crime it is 24. However, crime can vary block by block, so checking the crime map for specific streets is recommended.
What type of crime is most common in South Diamond Bar?
The most prevalent crime type in South Diamond Bar is Robbery, with a crime index of 166 (66% above the national average). Violent crime is a particular concern in this neighborhood relative to property crime.
What are safer neighborhoods near South Diamond Bar?
Nearby neighborhoods with good safety ratings include Blackstone. These areas are close to South Diamond Bar and offer lower crime rates, making them worth considering for residents who prioritize safety.
What are the demographics of South Diamond Bar?
South Diamond Bar has a population of approximately 3,025. The median household income is $164,976. The median home value is $721,972. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does South Diamond Bar crime compare to the national average?
South Diamond Bar's overall crime rate is 91% below the national average (index 9 vs 100). Within Brea, it is safer than 50% of neighborhoods. For the most accurate picture, review the per-crime-type breakdown above, as some categories may differ significantly from the overall trend.
Crime data sourced from FBI UCR reports and local law enforcement agencies. Crime indices use 100 as the national average. Updated April 2026.