Sierra Madre

City in Los Angeles County

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Report created October 27, 2026 at www.firezones.info/community/71806/sierra-madre

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    55% Very High

    Most of the Very High land is in the Local Responsibility Area, where the City of Sierra Madre adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    35% has burned

    Most recently the 2025 Eaton Fire, which burned 629 acres here, one of 24 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    36% 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 1,036 acres · <1 state, 1,035 local 55%
  2. High 146 acres · Local Responsibility Area 8%
  3. Moderate 130 acres · Local Responsibility Area 7%
  4. Non-wildland 580 acres · Local Responsibility Area 31%

1,891 acres of land in all, <1 in the State Responsibility Area and 1,891 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. 2025 Eaton Fire Of 14,056 acres in all 629 acres
  2. 1953 Monrovia Peak Fire Of 14,061 acres in all 410 acres
  3. 1954 Monrovia Peak Fire Of 13,870 acres in all 368 acres
  4. 2008 Santa Anita Fire Of 557 acres in all 335 acres
  5. 1961 Unnamed fire Of 922 acres in all 328 acres
  6. 1978 Mountain Trail Fire Of 1,295 acres in all 324 acres
  7. 1993 Kinneloa Fire Of 5,454 acres in all 156 acres
  8. 1900 Big Fire Of 16,961 acres in all 154 acres
  9. 1911 Unnamed fire Of 324 acres in all 125 acres
  10. 1975 Lannen Fire Of 160 acres in all 119 acres

And 14 smaller fires. In all, 665 acres of Sierra Madre 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

ZIP codes in Sierra Madre

Neighboring communities

  1. Sierra Madre 55% Very High · this area
  2. Arcadia 8% Very High
  3. East Pasadena No hazard zones
  4. Monrovia 33% Very High
  5. Pasadena 28% Very High