ZIP code 95446

Sonoma County, including Guerneville

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Report created October 27, 2026 at www.firezones.info/zip/95446

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    18% Very High

    All 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

    48% has burned

    Most recently the 2020 Walbridge Fire, which burned 6,425 acres here, one of 9 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    100% 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 3,513 acres · State Responsibility Area 18%
  2. High 16,013 acres · State Responsibility Area 80%
  3. Moderate 450 acres · State Responsibility Area 2%
  4. Not mapped by CAL FIRE 1 acres · Mostly federal land <1%

19,978 acres of land in all, 19,977 of it in the State Responsibility Area. 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. 2020 Walbridge Fire Of 55,209 acres in all · Cause: Lightning 6,425 acres
  2. 1961 Roadside #44 Fire Of 5,968 acres in all 3,063 acres
  3. 1959 Mccray Ridge Fire Of 1,226 acres in all 991 acres
  4. 1946 Unnamed fire Of 629 acres in all 584 acres
  5. 1945 Unnamed fire 348 acres
  6. 2011 Old Fire Cause: Miscellaneous 29 acres
  7. 2007 Armstrong Fire Cause: Arson 24 acres
  8. 1944 Unnamed fire Of 1,876 acres in all 23 acres
  9. 1955 Palmer Creek Fire Of 1,400 acres in all 3 acres

In all, 9,509 acres of ZIP code 95446 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

Communities in ZIP code 95446

Neighboring ZIP codes

  1. 95446 18% Very High · this area
  2. 95421 30% Very High
  3. 95430 51% High
  4. 95436 48% High · 4% Very High
  5. 95448 44% Very High
  6. 95462 6% Very High
  7. 95465 29% High · 2% Very High
  8. 95471 96% High · 4% Very High
  9. 95472 18% High · <1% Very High
  10. 95486 100% High