Los Angeles County

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  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 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

  The 10 largest of 2,533 fires that burned here

  Map
  1. 2009 Station Fire Cause: Arson 160,829 acres here
  2. 2020 Bobcat Fire 115,986 acres here
  3. 1919 Ravenna Fire 70,796 acres here
  4. 1878 Unnamed fire 59,469 acres here
  5. 2018 Woolsey Fire 89,551 acres in total · Cause: Power lines 56,513 acres here
  6. 1919 San Gabriel Fire 54,610 acres here
  7. 2024 Bridge Fire 55,724 acres in total 52,286 acres here
  8. 1975 Mill/Usfs Fire 51,220 acres here
  9. 1968 Liebre Fire 48,564 acres here
  10. 1924 San Gabriel Fire 43,050 acres here

  And 2,523 smaller fires. The most recent was the 2025 Harold Fire, which burned 11 acres here. 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