ZIP code 91311

Los Angeles and Ventura counties, including Los Angeles

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Report created October 27, 2026 at www.firezones.info/zip/91311

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    78% 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

    79% has burned

    Most recently the 2025 Harold Fire, which burned 11 acres here, one of 62 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    69% 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 16,821 acres · 13,398 state, 3,422 local 78%
  2. High 271 acres · Local Responsibility Area 1%
  3. Moderate 222 acres · Local Responsibility Area 1%
  4. Non-wildland 4,114 acres · Local Responsibility Area 19%
  5. Not mapped by CAL FIRE 29 acres · Mostly federal land <1%

21,457 acres of land in all, 13,398 in the State Responsibility Area and 8,030 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. 1970 Clampitt Fire Of 115,537 acres in all · Cause: Power lines 15,690 acres
  2. 2008 Sesnon Fire Of 14,701 acres in all 11,037 acres
  3. 1981 Oat Fire Of 17,787 acres in all 10,031 acres
  4. 2003 Simi Fire Of 107,570 acres in all 8,707 acres
  5. 1957 Santa Susana Pass Fire Of 4,734 acres in all 2,704 acres
  6. 2005 Topanga Fire Of 23,396 acres in all 2,116 acres
  7. 1968 Brown Fire Of 1,799 acres in all 1,713 acres
  8. 1967 Devonshire-Parker Fire Of 23,094 acres in all 1,345 acres
  9. 1988 Keuhner Fire Of 3,819 acres in all 1,306 acres
  10. 1993 Chatsworth Fire Of 1,931 acres in all 1,239 acres

And 52 smaller fires. In all, 17,017 acres of ZIP code 91311 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 91311

Neighboring ZIP codes

  1. 91311 78% Very High · this area
  2. 91304 51% Very High
  3. 91306 <1% Moderate
  4. 91321 66% Very High
  5. 91324 No hazard zones
  6. 91326 37% Very High
  7. 91344 36% Very High
  8. 91381 92% Very High
  9. 93063 82% Very High