Humboldt County

County in California

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Report created October 27, 2026 at www.firezones.info/county/023/humboldt

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    21% 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

    20% has burned

    Most recently the 2025 Bridge Fire, which burned 417 acres here, one of 671 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    64% Elevated · 4% 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 493,625 acres · 492,749 state, 875 local 21%
  2. High 677,746 acres · 675,075 state, 2,671 local 29%
  3. Moderate 471,837 acres · 444,698 state, 27,140 local 20%
  4. Non-wildland 47,984 acres · Local Responsibility Area 2%
  5. Not mapped by CAL FIRE 620,283 acres · Mostly federal land 27%

2,311,475 acres of land in all, 1,612,522 in the State Responsibility Area and 78,670 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. 1999 Megram Fire Of 125,073 acres in all · Cause: Lightning 59,243 acres
  2. 2020 Red Salmon Complex Of 143,836 acres in all · Cause: Lightning 53,191 acres
  3. 1955 Healy Logging Co. Fire 22,509 acres
  4. 2022 Campbell Fire Of 30,133 acres in all 19,608 acres
  5. 1936 A-Line Fire 17,531 acres
  6. 1964 Mattole Fire 16,467 acres
  7. 1945 Unnamed fire 15,791 acres
  8. 1938 Red Cap Fire Of 14,868 acres in all 14,549 acres
  9. 1973 Finley Creek Fire 12,808 acres
  10. 2003 Honeydew Fire Cause: Lightning 11,791 acres

And 661 smaller fires. In all, 456,816 acres of Humboldt 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 Humboldt County

Unincorporated communities in Humboldt County

ZIP codes in Humboldt County

Neighboring counties

  1. Humboldt County 21% Very High · this area
  2. Del Norte County 7% Very High
  3. Mendocino County 36% Very High
  4. Siskiyou County 27% Very High
  5. Trinity County 23% Very High