San Luis Obispo County

County in California

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Report created October 27, 2026 at www.firezones.info/county/079/san-luis-obispo

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    28% 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

    34% has burned

    Most recently the 2025 Estrella Fire, which burned 7 acres here, one of 701 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    13% 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 600,412 acres · 587,686 state, 12,726 local 28%
  2. High 824,146 acres · 794,860 state, 29,286 local 39%
  3. Moderate 177,228 acres · 146,008 state, 31,220 local 8%
  4. Non-wildland 52,435 acres · Local Responsibility Area 2%
  5. Not mapped by CAL FIRE 471,953 acres · Mostly federal land 22%

2,126,173 acres of land in all, 1,528,554 in the State Responsibility Area and 125,666 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. 1996 Highway 58 Fire Cause: Miscellaneous 106,966 acres
  2. 1985 Las Pilitas Fire Cause: Equipment use 84,271 acres
  3. 2025 Gifford Fire Of 131,614 acres in all 83,590 acres
  4. 2025 Madre Fire 80,745 acres
  5. 1921 Unnamed fire Cause: Miscellaneous 63,906 acres
  6. 1960 Weferling Fire 51,368 acres
  7. 1994 Hwy 41 Fire Cause: Arson 50,729 acres
  8. 1997 Logan Fire Cause: Miscellaneous 49,046 acres
  9. 2016 Chimney Fire Of 46,234 acres in all · Cause: Vehicle 41,996 acres
  10. 1939 Unnamed fire Cause: Miscellaneous 28,312 acres

And 691 smaller fires. In all, 727,144 acres of San Luis Obispo County 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

Cities and towns in San Luis Obispo County

Unincorporated communities in San Luis Obispo County

ZIP codes in San Luis Obispo County

Neighboring counties

  1. San Luis Obispo County 28% Very High · this area
  2. Kern County 12% Very High
  3. Kings County 14% High · 4% Very High
  4. Monterey County 36% Very High
  5. Santa Barbara County 29% Very High