Brook Bay Neighborhood, Mercer Island
Crime Rate & Statistics
One of the safest neighborhoods — significantly below-average crime
Safety at a Glance
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in Mercer Island
Is Brook Bay Safe?
Yes — this neighborhood is extremely safe. Brook Bay in Mercer Island, WA has a safety grade of A+. The overall crime index is 21, which is 79% below the national average of 100.
Compared to the Mercer Island average (crime index 47), Brook Bay is 26% lower in overall crime.
Looking at specific crime types, vehicle theft is the most elevated concern (index: 64, 36% below average), while burglary is the lowest risk (index: 20).
Brook Bay Crime Breakdown
Crime indices compared to national average (100) and Mercer Island city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
25 | -75% | Low | |
|
Assault
|
30 | -70% | Low | |
|
Robbery
|
48 | -52% | Low | |
|
Rape
|
46 | -54% | Low | |
| Property Crime | ||||
|
Burglary
|
20 | -80% | Low | |
|
Larceny / Theft
|
50 | -50% | Low | |
|
Vehicle Theft
|
64 | -36% | Low | |
How Brook Bay Compares
Crime index by category: Brook Bay vs Mercer Island average vs national average.
Crime by Category
Overall Crime Comparison
Brook Bay Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
See the crime score for a specific address
Brook Bay Demographics & Context
Education
Housing
Racial Demographics
Nearby Neighborhoods
Frequently Asked Questions
What is the crime rate in Brook Bay, Mercer Island?
Brook Bay in Mercer Island, WA has a crime safety grade of A+ as of 2026. The overall crime index is 21, which is 79% below the national average. Compared to the Mercer Island average, crime in Brook Bay is 26% lower.
Is Brook Bay a safe neighborhood in Mercer Island?
Brook Bay is generally considered a safe neighborhood in Mercer Island, earning a crime grade of A+. The highest concern is Vehicle Theft (index: 64), while Burglary is the lowest risk (index: 20).
How does Brook Bay compare to the rest of Mercer Island?
Brook Bay's overall crime index is 21, compared to the Mercer Island average of 47. This means crime in Brook Bay is 26% lower than the city average. For violent crime, the index is 37, and for property crime it is 45. 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 Brook Bay?
The most prevalent crime type in Brook Bay is Vehicle Theft, with a crime index of 64 (36% below the national average). Overall, property crime is more prevalent than violent crime in this neighborhood, which is consistent with national trends.
What are safer neighborhoods near Brook Bay?
Nearby neighborhoods with good safety ratings include Groveland, Parkwest, Lakeview Highlands and Forest Avenue. These areas are close to Brook Bay and offer lower crime rates, making them worth considering for residents who prioritize safety.
What are the demographics of Brook Bay?
Brook Bay has a population of approximately 18. The median household income is $258,089. The median home value is $4,778,639. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does Brook Bay crime compare to the national average?
Brook Bay's overall crime rate is 79% below the national average (index 21 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 April 2026.