Los Angeles County

County in California

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Report created October 27, 2026 at www.firezones.info/county/037/los-angeles

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    29% 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

    46% has burned

    Most recently the 2025 Harold Fire, which burned 11 acres here, one of 2,533 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    40% 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 769,031 acres · 456,099 state, 312,933 local 29%
  2. High 77,969 acres · 21,379 state, 56,591 local 3%
  3. Moderate 330,671 acres · 18,087 state, 312,584 local 13%
  4. Non-wildland 648,602 acres · Local Responsibility Area 25%
  5. Not mapped by CAL FIRE 792,570 acres · Mostly federal land 30%

2,618,844 acres of land in all, 495,564 in the State Responsibility Area and 1,330,709 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. 2009 Station Fire Cause: Arson 160,829 acres
  2. 2020 Bobcat Fire 115,986 acres
  3. 1919 Ravenna Fire 70,796 acres
  4. 1878 Unnamed fire 59,469 acres
  5. 2018 Woolsey Fire Of 89,551 acres in all · Cause: Power lines 56,513 acres
  6. 1919 San Gabriel Fire 54,610 acres
  7. 2024 Bridge Fire Of 55,724 acres in all 52,286 acres
  8. 1975 Mill/Usfs Fire 51,220 acres
  9. 1968 Liebre Fire 48,564 acres
  10. 1924 San Gabriel Fire 43,050 acres

And 2,523 smaller fires. In all, 1,195,750 acres of Los Angeles 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 Los Angeles County

Unincorporated communities in Los Angeles County

ZIP codes in Los Angeles County

301

Neighboring counties

  1. Los Angeles County 29% Very High · this area
  2. Kern County 12% Very High
  3. Orange County 33% Very High
  4. San Bernardino County 13% Moderate · 2% Very High
  5. Ventura County 36% Very High