Longwater Neighborhood, San Mateo
Last updated: June 5, 2026
Crime Rate & Statistics
One of the safest neighborhoods — significantly below-average crime
Summary: Longwater, San Mateo Crime Rate (2026)
Longwater in San Mateo, CA has a crime safety grade of A+ as of 2026. The overall crime index is 25, which is 75% below the national average.
Data source: FBI UCR & local law enforcement data. Last updated: June 5, 2026.
Safety at a Glance
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in San Mateo
Is Longwater Safe?
Yes — this neighborhood is extremely safe. Longwater in San Mateo, CA has a safety grade of A+. The overall crime index is 25, which is 75% below the national average of 100.
Compared to the San Mateo average (crime index 66), Longwater is 41% lower in overall crime. This neighborhood is significantly safer than San Mateo as a whole, making it an attractive option for safety-conscious residents.
Looking at specific crime types, robbery is the most elevated concern (index: 54, 46% below average), while murder is the lowest risk (index: 4).
Longwater Crime Breakdown
Crime indices compared to national average (100) and San Mateo city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
4 | -96% | Low | |
|
Assault
|
8 | -92% | Low | |
|
Robbery
|
54 | -46% | Low | |
|
Rape
|
44 | -56% | Low | |
| Property Crime | ||||
|
Burglary
|
5 | -95% | Low | |
|
Larceny / Theft
|
9 | -91% | Low | |
|
Vehicle Theft
|
25 | -75% | Low | |
How Longwater Compares
Crime index by category: Longwater vs San Mateo average vs national average.
Crime by Category
Overall Crime Comparison
Longwater Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
See the crime score for a specific address
Longwater Demographics & Context
Education
Housing
Racial Demographics
Nearby Neighborhoods
Frequently Asked Questions
What is the crime rate in Longwater, San Mateo?
Longwater in San Mateo, CA has a crime safety grade of A+ as of 2026. The overall crime index is 25, which is 75% below the national average. Compared to the San Mateo average, crime in Longwater is 41% lower.
Is Longwater a safe neighborhood in San Mateo?
Longwater is generally considered a safe neighborhood in San Mateo, earning a crime grade of A+. The highest concern is Robbery (index: 54), while Murder is the lowest risk (index: 4).
How does Longwater compare to the rest of San Mateo?
Longwater's overall crime index is 25, compared to the San Mateo average of 66. This means crime in Longwater is 41% lower than the city average. For violent crime, the index is 28, and for property crime it is 13. 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 Longwater?
The most prevalent crime type in Longwater is Robbery, with a crime index of 54 (46% below the national average). Violent crime is a particular concern in this neighborhood relative to property crime.
What are safer neighborhoods near Longwater?
Nearby neighborhoods with good safety ratings include Harbor Side, Sea Colony, The Islands and Dolphin Bay. These areas are close to Longwater and offer lower crime rates, making them worth considering for residents who prioritize safety.
What are the demographics of Longwater?
Longwater has a population of approximately 126. The median household income is $176,246. The median home value is $2,442,472. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does Longwater crime compare to the national average?
Longwater's overall crime rate is 75% below the national average (index 25 vs 100). 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 June 2026.