ZIP code 93255

Kern County, including Onyx

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Report created October 27, 2026 at www.firezones.info/zip/93255

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    4% Very High

    All 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

    13% has burned

    Most recently the 2024 Bella Fire, which burned 454 acres here, one of 38 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    92% Elevated · 2% 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 6,395 acres · State Responsibility Area 4%
  2. High 5,579 acres · State Responsibility Area 4%
  3. Moderate 4,451 acres · State Responsibility Area 3%
  4. Not mapped by CAL FIRE 135,896 acres · Mostly federal land 89%

152,322 acres of land in all, 16,426 of it in the State Responsibility Area. 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. 1997 Jacks Fire Of 5,747 acres in all · Cause: Lightning 5,556 acres
  2. 1941 Unnamed fire Cause: Lightning 2,970 acres
  3. 2014 Nicolls Fire Cause: Miscellaneous 1,679 acres
  4. 1994 White Blanket Fire Of 2,564 acres in all · Cause: Miscellaneous 1,668 acres
  5. 2010 Indian Fire Cause: Lightning 1,501 acres
  6. 2021 Owens Fire Of 1,390 acres in all · Cause: Miscellaneous 907 acres
  7. 1972 Long Fire Of 1,201 acres in all · Cause: Campfire 876 acres
  8. 2010 Sand 2 Fire Of 910 acres in all · Cause: Lightning 827 acres
  9. 2023 Noname Fire Of 1,114 acres in all 801 acres
  10. 2016 Erskine Fire Of 48,008 acres in all 753 acres

And 28 smaller fires. In all, 20,107 acres of ZIP code 93255 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 93255

Neighboring ZIP codes

  1. 93255 4% Very High · this area
  2. 93283 11% Very High
  3. 93527 15% Moderate · 4% Very High