ZIP code 91024

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 1,092 acres · 34 state, 1,058 local 49%
  2. High 146 acres · Local Responsibility Area 6%
  3. Moderate 130 acres · Local Responsibility Area 6%
  4. Non-wildland 580 acres · Local Responsibility Area 26%
  5. Not mapped by CAL FIRE 291 acres · Mostly federal land 13%

  2,239 acres of land in all, 34 in the State Responsibility Area and 1,914 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 27 fires that burned here

  Map
  1. 2025 Eaton Fire 14,056 acres in total 790 acres here
  2. 1953 Monrovia Peak Fire 14,061 acres in total 758 acres here
  3. 1954 Monrovia Peak Fire 13,870 acres in total 716 acres here
  4. 1900 Big Fire 16,961 acres in total 501 acres here
  5. 2008 Santa Anita Fire 557 acres in total 335 acres here
  6. 1999 Santa Anita Ii Fire 736 acres in total · Cause: Miscellaneous 331 acres here
  7. 1961 Unnamed fire 922 acres in total 328 acres here
  8. 1978 Mountain Trail Fire 1,295 acres in total 324 acres here
  9. 1969 Bole Fire 715 acres in total 218 acres here
  10. 2020 Bobcat Fire 115,998 acres in total 207 acres here

  And 17 smaller fires. The most recent was the 2025 Eaton Fire, which burned 790 acres here. In all, 1,012 acres of ZIP code 91024 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