Sunol

Community in Alameda County

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Report created October 27, 2026 at www.firezones.info/community/77042/sunol

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    12% Very High

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

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    3% has burned

    Most recently the 2022 Canyon Fire, which burned 11 acres here, one of 5 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    24% 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.

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Land by hazard class

  1. Very High 2,170 acres · 2,170 state, <1 local 12%
  2. High 7,733 acres · 7,728 state, 5 local 42%
  3. Moderate 8,397 acres · 8,394 state, 2 local 46%

18,300 acres of land in all, 18,292 in the State Responsibility Area and 8 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. 2005 Koopman Fire Cause: Arson 394 acres
  2. 1958 Overacker Fire Of 289 acres in all 119 acres
  3. 1998 Vallecitos Fire Cause: Arson 70 acres
  4. 2020 Scu Lightning Complex Of 396,824 acres in all · Cause: Lightning 21 acres
  5. 2022 Canyon Fire Of 50 acres in all · Cause: Miscellaneous 11 acres

In all, 615 acres of Sunol 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 Sunol

Neighboring communities

  1. Sunol 12% Very High · this area
  2. Fremont 6% High · <1% Very High
  3. Hayward 17% High
  4. Pleasanton 24% High
  5. Union City 49% High