ZIP code 91759

Los Angeles and San Bernardino counties, including Claremont

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Report created October 27, 2026 at www.firezones.info/zip/91759

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    3% Very High

    Most of the Very High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    97% has burned

    Most recently the 2024 Bridge Fire, which burned 30,397 acres here, one of 64 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    100% 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 1,840 acres · 1,695 state, 145 local 3%
  2. Not mapped by CAL FIRE 50,980 acres · Mostly federal land 97%

52,820 acres of land in all, 1,695 in the State Responsibility Area and 145 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. 2024 Bridge Fire Of 55,724 acres in all 30,397 acres
  2. 1953 Fish Fork Fire Of 24,610 acres in all 14,847 acres
  3. 1975 Village Fire 14,141 acres
  4. 2002 Williams Fire Of 38,119 acres in all · Cause: Arson 11,724 acres
  5. 1997 Narrows Fire Of 18,160 acres in all · Cause: Debris burning 11,269 acres
  6. 1980 Thunder Fire Of 10,009 acres in all · Cause: Equipment use 9,714 acres
  7. 1919 San Gabriel Fire Of 54,610 acres in all 9,612 acres
  8. 1960 Unnamed fire Of 22,736 acres in all 7,157 acres
  9. 2003 Padua Fire Of 10,458 acres in all · Cause: Arson 5,745 acres
  10. 1953 Barrett Fire Of 6,868 acres in all 5,406 acres

And 54 smaller fires. In all, 51,353 acres of ZIP code 91759 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 91759

Neighboring ZIP codes

  1. 91759 3% Very High · this area
  2. 91702 7% Very High
  3. 91711 42% Very High
  4. 91750 29% Very High
  5. 91784 25% Very High
  6. 92358 7% Very High
  7. 92397 16% Very High