ZIP code 93550

Los Angeles County, including Palmdale and Acton

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Report created October 27, 2026 at www.firezones.info/zip/93550

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    8% 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

    83% has burned

    Most recently the 2022 Cheseboro Fire, which burned 1 acre here, one of 107 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    88% 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 13,883 acres · 10,471 state, 3,413 local 8%
  2. High 1,512 acres · 68 state, 1,444 local 1%
  3. Moderate 5,483 acres · 56 state, 5,427 local 3%
  4. Non-wildland 7,210 acres · Local Responsibility Area 4%
  5. Not mapped by CAL FIRE 138,372 acres · Mostly federal land 83%

166,459 acres of land in all, 10,594 in the State Responsibility Area and 17,493 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. 2009 Station Fire Of 160,833 acres in all · Cause: Arson 84,668 acres
  2. 2020 Bobcat Fire Of 115,998 acres in all 36,340 acres
  3. 1979 Sage/Usfs Fire 28,842 acres
  4. 1878 Unnamed fire Of 59,469 acres in all 27,715 acres
  5. 1924 San Gabriel Fire Of 43,050 acres in all 20,825 acres
  6. 1957 Gale Fire Of 24,708 acres in all 19,487 acres
  7. 1915 Unnamed fire Of 15,096 acres in all 14,524 acres
  8. 2004 Crown Fire Of 11,754 acres in all · Cause: Equipment use 9,016 acres
  9. 1975 Mill/Usfs Fire Of 51,220 acres in all 8,027 acres
  10. 1900 Big Fire Of 16,961 acres in all 7,305 acres

And 97 smaller fires. In all, 138,796 acres of ZIP code 93550 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 93550

Neighboring ZIP codes

  1. 93550 8% Very High · this area
  2. 91042 11% Very High
  3. 91387 35% Very High
  4. 91702 7% Very High
  5. 92397 16% Very High
  6. 93510 61% Very High
  7. 93534 44% Moderate
  8. 93535 79% Moderate · 5% High
  9. 93543 35% Very High
  10. 93551 74% Very High
  11. 93552 14% Very High
  12. 93553 42% Very High
  13. 93563 9% Very High