Alamo

Community in Contra Costa County

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Report created October 27, 2026 at www.firezones.info/community/00618/alamo

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    50% 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

    1% has burned

    The 1961 Parker Fire burned 47 acres here.

  • Power line fire risk

    Share of the land in the High Fire-Threat District

    16% 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 3,136 acres · 2,409 state, 727 local 50%
  2. Moderate 737 acres · 77 state, 660 local 12%
  3. Non-wildland 2,408 acres · Local Responsibility Area 38%

6,281 acres of land in all, 2,486 in the State Responsibility Area and 3,795 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

Fires that burned here

  1. 1961 Parker Fire Of 224 acres in all 47 acres

In all, 47 acres of Alamo have burned. Acres are the land each fire burned here, and fires that crossed less than an acre are not counted. Some older or smaller fires may be missing, and a fire perimeter can include unburned patches. How to read fire history

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 Alamo

Neighboring communities

  1. Alamo 50% High · this area
  2. Castle Hill 42% High
  3. Danville 12% High · <1% Very High
  4. Diablo 60% High · 1% Very High
  5. San Miguel 5% High
  6. Saranap 19% Moderate
  7. Walnut Creek 28% High