ZIP code 91711

Los Angeles County, including Claremont

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Report created October 27, 2026 at www.firezones.info/zip/91711

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    42% Very High

    Most of the Very High land is in the Local Responsibility Area, where each city or county adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    51% has burned

    Most recently the 2003 Padua Fire, which burned 4,292 acres here, one of 37 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    18% 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 4,073 acres · 866 state, 3,207 local 42%
  2. High 971 acres · Local Responsibility Area 10%
  3. Moderate 300 acres · Local Responsibility Area 3%
  4. Non-wildland 4,113 acres · Local Responsibility Area 43%
  5. Not mapped by CAL FIRE 189 acres · Mostly federal land 2%

9,647 acres of land in all, 866 in the State Responsibility Area and 8,591 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. 2003 Padua Fire Of 10,458 acres in all · Cause: Arson 4,292 acres
  2. 1962 Unnamed fire 2,016 acres
  3. 1979 Millie Fire 1,990 acres
  4. 1927 Webb School No. 26 Fire 851 acres
  5. 1910 Unnamed fire Of 1,646 acres in all 654 acres
  6. 1953 Barrett Fire Of 6,868 acres in all 411 acres
  7. 1990 Webb Ii Fire 340 acres
  8. 1914 Unnamed fire Of 1,711 acres in all 250 acres
  9. 1985 Johnson Fire 231 acres
  10. 1914 Unnamed fire Of 729 acres in all 226 acres

And 27 smaller fires. In all, 4,917 acres of ZIP code 91711 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

Communities in ZIP code 91711

Neighboring ZIP codes

  1. 91711 42% Very High · this area
  2. 91750 29% Very High
  3. 91759 3% Very High
  4. 91763 No hazard zones
  5. 91767 No hazard zones
  6. 91784 25% Very High
  7. 91786 2% High