Los Osos

Community in San Luis Obispo County

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Report created October 27, 2026 at www.firezones.info/community/44182/los-osos

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    53% Very High

    Most of the Very High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

  • Fire history

    Share of the land inside a recorded wildfire perimeter

    1% has burned

    The 1984 Swift Le-7 Fire burned 114 acres here.

  • Power line fire risk

    Share of the land in the High Fire-Threat District

    55% Elevated

    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.

Land by hazard class

  1. Very High 4,266 acres · 3,903 state, 363 local 53%
  2. High 452 acres · 66 state, 386 local 6%
  3. Moderate 2,095 acres · 1,952 state, 143 local 26%
  4. Non-wildland 1,214 acres · Local Responsibility Area 15%
  5. Not mapped by CAL FIRE 32 acres · Mostly federal land <1%

8,059 acres of land in all, 5,921 in the State Responsibility Area and 2,106 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

Fires that burned here

  1. 1984 Swift Le-7 Fire Of 426 acres in all 114 acres

In all, 114 acres of Los Osos 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 Los Osos

Neighboring communities

  1. Los Osos 53% Very High · this area
  2. Morro Bay 20% Very High