91789 Zip Code, Walnut
Crime Rate & Statistics
Safe zip code — below-average crime across most categories
Safer than 0% of zip codes in Walnut
Safety at a Glance
Is 91789 a Safe Zip Code?
Zip code 91789 in Walnut, CA has a safety grade of A-. The overall crime index is 19, which is 81% below the national average of 100. This zip code is safer than 0% of zip codes in Walnut.
Looking at specific crime types, robbery is the most elevated concern (index: 146, 46% above average), while larceny / theft is the lowest risk (index: 14). Violent crime is a particular area of concern relative to property crime in this zip code.
Overall, zip code 91789 is considered a safe area for residents and visitors. Standard urban awareness is recommended, but the area benefits from lower-than-average crime rates across most categories.
91789 Crime Breakdown
Crime indices compared to national average (100) and Walnut city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
21 | -79% | Low | |
|
Assault
|
25 | -75% | Low | |
|
Robbery
|
146 | +46% | Moderate | |
|
Rape
|
131 | +31% | Moderate | |
| Property Crime | ||||
|
Burglary
|
33 | -67% | Low | |
|
Larceny / Theft
|
14 | -86% | Low | |
|
Vehicle Theft
|
56 | -44% | Low | |
91789 Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
91789 Demographics & Context
Education
Housing
Racial Demographics
Frequently Asked Questions
What is the crime rate in Zip code 91789, Walnut?
Zip code 91789 in Walnut, CA has a crime safety grade of A- as of 2026. The overall crime index is 19, which is 81% below the national average. Zip code 91789 is safer than 0% of neighborhoods in Walnut.
Is Zip code 91789 a safe neighborhood in Walnut?
Zip code 91789 is generally considered a safe neighborhood in Walnut, earning a crime grade of A-. The highest concern is Robbery (index: 146), while Larceny / Theft is the lowest risk (index: 14). It is one of the safest neighborhoods in Walnut.
What type of crime is most common in Zip code 91789?
The most prevalent crime type in Zip code 91789 is Robbery, with a crime index of 146 (46% above the national average). Violent crime is a particular concern in this neighborhood relative to property crime.
What are the demographics of Zip code 91789?
Zip code 91789 has a population of approximately 47,571. The median household income is $121,750. The median home value is $1,009,445. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does Zip code 91789 crime compare to the national average?
Zip code 91789's overall crime rate is 81% below the national average (index 19 vs 100). Within Walnut, it is safer than 0% 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 March 2026.