ZIP code 93021

Ventura County, including Moorpark and Thousand Oaks

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Report created October 27, 2026 at www.firezones.info/zip/93021

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    87% 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

    72% has burned

    Most recently the 2024 Mountain Fire, which burned 941 acres here, one of 22 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    98% 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 26,883 acres · 15,375 state, 11,509 local 87%
  2. High 1,737 acres · 475 state, 1,261 local 6%
  3. Moderate 1,384 acres · 688 state, 696 local 5%
  4. Non-wildland 736 acres · Local Responsibility Area 2%
  5. Not mapped by CAL FIRE 2 acres · Mostly federal land <1%

30,742 acres of land in all, 16,538 in the State Responsibility Area and 14,202 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. 2003 Simi Fire Of 107,570 acres in all 15,436 acres
  2. 1970 Clampitt Fire Of 115,537 acres in all · Cause: Power lines 12,608 acres
  3. 2006 Shekell Fire Of 13,618 acres in all 11,236 acres
  4. 1953 Shields Lease Fire Of 11,775 acres in all 8,666 acres
  5. 1946 Wiley Canyon Fire Of 21,266 acres in all 8,397 acres
  6. 1958 Calumet Canyon Fire Of 17,214 acres in all 7,017 acres
  7. 2009 Guiberson Fire Of 17,527 acres in all 6,478 acres
  8. 1984 Grimes Fire Of 11,305 acres in all 2,291 acres
  9. 2024 Mountain Fire Of 19,902 acres in all 941 acres
  10. 2019 Easy Fire Of 1,806 acres in all 545 acres

And 12 smaller fires. In all, 22,035 acres of ZIP code 93021 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 93021

Neighboring ZIP codes

  1. 93021 87% Very High · this area
  2. 91360 58% Very High
  3. 91362 77% Very High
  4. 93012 64% Very High
  5. 93015 77% Very High
  6. 93065 72% Very High
  7. 93066 62% Very High