Guerneville

Community in Sonoma County

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Report created October 31, 2026 at www.firezones.org/community/31470/guerneville

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 101 acres · State Responsibility Area 2%
    2. High 6,206 acres · State Responsibility Area 98%
    3. Moderate 15 acres · State Responsibility Area <1%
    4. Not mapped by CAL FIRE 1 acre · Mostly federal land <1%

    6,323 acres of land in all, 6,322 of it in the State Responsibility Area. State zones are the ones the State Fire Marshal designated, in effect since April 1, 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

  • Fire history

    Fires CAL FIRE has recorded here

    1. 2020 Walbridge Fire 55,209 acres in total · Cause: Lightning 787 acres here
    2. 1961 Roadside #44 Fire 5,968 acres in total 568 acres here
    3. 1945 Unnamed fire 349 acres in total 25 acres here
    4. 1959 Mccray Ridge Fire 1,226 acres in total 6 acres here

    The most recent was the 2020 Walbridge Fire, which burned 787 acres here. In all, 1,375 acres of Guerneville 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

Nearby areas

ZIP codes in Guerneville

Neighboring communities

  1. Guerneville 98% High · 2% Very High · this area
  2. Monte Rio >99% High

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published June 27, 2025, local map February 2, 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published July 28, 2026

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