Del Norte County

County in California

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Report created October 27, 2026 at www.firezones.info/county/015/del-norte

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    7% 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

    41% has burned

    Most recently the 2025 Red Fire, which burned 115 acres here, one of 250 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    80% Elevated

    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 45,565 acres · State Responsibility Area 7%
  2. High 53,504 acres · 53,435 state, 69 local 8%
  3. Moderate 93,164 acres · 90,727 state, 2,436 local 14%
  4. Non-wildland 7,301 acres · Local Responsibility Area 1%
  5. Not mapped by CAL FIRE 450,102 acres · Mostly federal land 69%

649,635 acres of land in all, 189,727 in the State Responsibility Area and 9,806 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

Largest fires

  1. 2023 Kelly Fire Of 89,326 acres in all 76,799 acres
  2. 2020 Slater Fire Of 157,430 acres in all 30,834 acres
  3. 2002 Biscuit Fire Of 501,082 acres in all · Cause: Lightning 28,883 acres
  4. 2008 Mill Fire Of 65,882 acres in all · Cause: Lightning 25,383 acres
  5. 2017 Oak Fire Of 91,125 acres in all · Cause: Lightning 21,551 acres
  6. 2023 Mosquito Fire Of 34,188 acres in all · Cause: Lightning 20,422 acres
  7. 2008 Blue 2 Fire Cause: Lightning 17,549 acres
  8. 2015 Peak Fire Of 11,525 acres in all · Cause: Lightning 11,376 acres
  9. 2015 Bear Fire Of 11,617 acres in all · Cause: Lightning 11,165 acres
  10. 2015 Nickowitz Fire Of 7,576 acres in all · Cause: Lightning 6,291 acres

And 240 smaller fires. In all, 263,565 acres of Del Norte County 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

Cities and towns in Del Norte County

Unincorporated communities in Del Norte County

ZIP codes in Del Norte County

Neighboring counties

  1. Del Norte County 7% Very High · this area
  2. Humboldt County 21% Very High
  3. Siskiyou County 27% Very High