Alhambra Valley

Community in Contra Costa County

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Report created October 27, 2026 at www.firezones.info/community/00898/alhambra-valley

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    >99% High

    Most of the High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

  • Fire history

    Share of the land inside a recorded wildfire perimeter

    No recorded fires

    CAL FIRE has no record of a fire that burned an acre or more here.

  • Power line fire risk

    Share of the land in the High Fire-Threat District

    94% Elevated · <1% Extreme

    Utilities may shut off power in the CPUC High Fire-Threat District in fire weather, and homes outside it can lose power when their lines run through it.

Land by hazard class

  1. High 1,032 acres · 1,030 state, 2 local >99%
  2. Not mapped by CAL FIRE 1 acres · Mostly federal land <1%

1,033 acres of land in all, 1,030 in the State Responsibility Area and 2 in the Local. State zones are the ones the State Fire Marshal designated, in effect since 1 April 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published 27 June 2025, local map 2 February 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Power line fire risk
California Public Utilities Commission
Published 23 February 2026

This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data

Nearby areas

ZIP codes in Alhambra Valley

Neighboring communities

  1. Alhambra Valley >99% High · this area
  2. Martinez 23% High
  3. Reliez Valley 64% High