Altadena

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 1,738 acres · 577 state, 1,161 local 32%
  2. High 393 acres · Local Responsibility Area 7%
  3. Moderate 354 acres · Local Responsibility Area 7%
  4. Non-wildland 2,557 acres · Local Responsibility Area 47%
  5. Not mapped by CAL FIRE 386 acres · Mostly federal land 7%

  5,428 acres of land in all, 577 in the State Responsibility Area and 4,465 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 21 fires that burned here

  Map
  1. 2025 Eaton Fire 14,056 acres in total 3,314 acres here
  2. 1935 Las Flores No. 57 Fire 2,521 acres in total 1,181 acres here
  3. 1900 Big Fire 2,521 acres in total 1,181 acres here
  4. 1993 Kinneloa Fire 5,454 acres in total 442 acres here
  5. 1979 Pinecrest/Usfs Fire 5,306 acres in total 261 acres here
  6. 1917 Unnamed fire 214 acres in total 168 acres here
  7. 1917 Unnamed fire 313 acres in total 149 acres here
  8. 2009 Station Fire 160,833 acres in total · Cause: Arson 78 acres here
  9. 1962 Unnamed fire 545 acres in total 62 acres here
  10. 1941 Debbins Fire 49 acres in total 38 acres here

  And 11 smaller fires. The most recent was the 2025 Eaton Fire, which burned 3,314 acres here. In all, 3,573 acres of Altadena 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