Alameda County, California Wildfire Risk Score

Alameda County, California has a 3.7 / 10 wildfire risk score from PerilScore v4 data.

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Wildfire risk score
3.7 / 10
Lower risk
Confidence 100%
Snapshot 2026-06-17
Computed from decades of public weather data using physics-based probability modeling.
Flammability
0.76
Fire weather
0.47
Slope
29.1 deg
WUI exposure
Yes
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Risk Score (0-10)
3.7
Historical Events
No data

in the record

Avg Return Period
No data

years between events

Data Confidence
100%

Alameda County, California has a 3.7 / 10 wildfire risk score, which falls in the very high band and is in the 100th percentile among scored local areas in this model. The score was snapshotted on 2026-06-17 with 100% model confidence.

What drives this score here?

WUI exposure is the largest V4 contributor from registered local hazard drivers. For this location, the score card also highlights these model signals:

  • Flammability: 0.76
  • Fire weather: 0.47
  • Slope: 29.1 deg
  • WUI exposure: Yes

The strongest component metrics in the snapshot are:

  • WUI Exposure: model component 0.120. The raw value is 1.00.
  • Slope: model component 0.080. The raw value is 29.1 deg.
  • Burning Index Max: model component 0.080. The raw value is 72.0.

For wildfire exposure, the useful signals are flammability, fire weather, terrain, slope, and nearby historical fire proximity. This snapshot marks WUI exposure as yes, with slope at 29.1 deg.

How to read the location signal

This page uses the representative local model area around the county or parish centroid for Alameda County, California. That local model area is roughly 5 square kilometers, so the score is a practical place-level signal for browsing and comparison. The building-level view comes from entering a street address.

The model confidence is high enough for direct local comparison across nearby pages.

The source record for this page is: PerilScore local wildfire local model feature table with LANDFIRE, WUI, terrain, fire weather, and perimeter drivers

Why building details matter

A street-address score can account for the unique characteristics of a specific building, including age, construction type, roof shape and condition, occupancy, elevation, defensible space, drainage, terrain, and nearby exposure. Those details can change resilience or susceptibility around the same location-level score.

Use this county page as the broadest browse layer before drilling into city and ZIP pages. Since the percentile is elevated, it is worth comparing nearby pages before relying on the area score alone.

Use the PerilScore app to enter a street address and see the full property-specific score.

Building-level address score

The local score is the starting point

A specific building can perform differently from the surrounding area. The PerilScore street-address check adds building age, construction type, roof details, occupancy, elevation, defensible space, drainage, terrain, and nearby exposure to the wildfire layer shown here.

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More wildfire scores nearby

Oakland, CA City score: 2.8 / 10 ZIP 91042, Los Angeles County, CA Zip score: 3.9 / 10 ZIP 91384, Los Angeles County, CA Zip score: 3.9 / 10 ZIP 95318, Mariposa County, CA Zip score: 3.9 / 10 Los Angeles County, CA County score: 3.8 / 10 ZIP 93240, Kern County, CA Zip score: 3.8 / 10

About this wildfire score

What does the wildfire score mean for Alameda County, California?
The 3.7 / 10 score summarizes long-run wildfire exposure for the representative local model area at this location’s centroid. It is best used as a local area signal before checking a street address.
Why can nearby buildings have different wildfire risk?
Building age, construction type, roof details, occupancy, elevation, defensible space, drainage, terrain, and nearby exposure can change resilience or susceptibility at the address level.
How do I get the building-specific score?
Use the free PerilScore app and enter the street address. The full score starts with the wildfire layer shown here and adds building and surroundings details for that property.

Want the full picture for a specific property?

The scores on this site show the representative wildfire layer for a local area. Enter a street address to add building age, construction type, roof details, occupancy, surroundings, and property-level context.

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Free results for any US street address.