ZIP code 91750

Los Angeles County, including La Verne

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Report created October 27, 2026 at www.firezones.info/zip/91750

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    29% Very High

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

  • Fire history

    Share of the land inside a recorded wildfire perimeter

    53% has burned

    Most recently the 2024 Bridge Fire, which burned 830 acres here, one of 34 fires on record.

  • Power line fire risk

    Share of the land in the High Fire-Threat District

    48% 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.

Land by hazard class

  1. Very High 3,470 acres · 1,835 state, 1,635 local 29%
  2. High 416 acres · 21 state, 394 local 3%
  3. Moderate 373 acres · 3 state, 370 local 3%
  4. Non-wildland 3,282 acres · Local Responsibility Area 27%
  5. Not mapped by CAL FIRE 4,437 acres · Mostly federal land 37%

11,977 acres of land in all, 1,859 in the State Responsibility Area and 5,681 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. 2002 Williams Fire Of 38,119 acres in all · Cause: Arson 5,801 acres
  2. 1960 Unnamed fire Of 22,736 acres in all 5,358 acres
  3. 1919 San Gabriel Fire Of 54,610 acres in all 3,399 acres
  4. 2024 Bridge Fire Of 55,724 acres in all 830 acres
  5. 1996 North Fork Fire Of 247 acres in all · Cause: Equipment use 175 acres
  6. 1988 Leroy Fire 170 acres
  7. 1907 Unnamed fire Of 170 acres in all 120 acres
  8. 2003 Padua Fire Of 10,458 acres in all · Cause: Arson 93 acres
  9. 1971 Lodi Fire Of 343 acres in all 92 acres
  10. 1907 Unnamed fire 88 acres

And 24 smaller fires. In all, 6,328 acres of ZIP code 91750 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 91750

Neighboring ZIP codes

  1. 91750 29% Very High · this area
  2. 91702 7% Very High
  3. 91711 42% Very High
  4. 91741 33% Very High
  5. 91759 3% Very High
  6. 91767 No hazard zones
  7. 91768 18% High · 4% Very High
  8. 91773 33% Very High