San Jose

City in Santa Clara County

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Report created October 27, 2026 at www.firezones.info/community/68000/san-jose

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    6% Very High

    Most of the Very High land is in the Local Responsibility Area, where the City of San Jose adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    1% has burned

    Most recently the 2021 Piercy Fire, which burned 39 acres here, one of 11 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    8% Elevated · 1% 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 7,135 acres · 44 state, 7,091 local 6%
  2. High 15,858 acres · 171 state, 15,687 local 14%
  3. Moderate 5,529 acres · 46 state, 5,483 local 5%
  4. Non-wildland 81,448 acres · Local Responsibility Area 70%
  5. Not mapped by CAL FIRE 5,751 acres · Mostly federal land 5%

115,720 acres of land in all, 261 in the State Responsibility Area and 109,708 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. 2004 Silver Fire Cause: Arson 478 acres
  2. 1979 Ford Rd. Fire Of 422 acres in all 414 acres
  3. 2016 Loma Fire Of 4,474 acres in all 279 acres
  4. 1998 Curie Fire Of 321 acres in all · Cause: Arson 120 acres
  5. 2017 Lariat Fire 101 acres
  6. 1989 P.g.&E. #2 Fire Of 304 acres in all 77 acres
  7. 1999 Malech Fire Of 1,200 acres in all · Cause: Equipment use 50 acres
  8. 1997 Shea Fire Cause: Vehicle 50 acres
  9. 2021 Piercy Fire 39 acres
  10. 1989 Pg & E #2 Fire Of 584 acres in all 19 acres

And 1 smaller fire. In all, 1,545 acres of San Jose 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

ZIP codes in San Jose

Neighboring communities

  1. San Jose 6% Very High · this area
  2. Alum Rock No hazard zones
  3. Burbank No hazard zones
  4. Cambrian Park No hazard zones
  5. Campbell No hazard zones
  6. Cupertino 15% Very High
  7. East Foothills 32% High
  8. Fremont 6% High · <1% Very High
  9. Fruitdale No hazard zones
  10. Los Gatos 9% Very High
  11. Milpitas 20% Moderate
  12. Morgan Hill 8% Very High
  13. Santa Clara No hazard zones
  14. Saratoga 14% Very High
  15. Sunnyvale No hazard zones