Rancho San Diego

Community in San Diego County

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Report created October 27, 2026 at www.firezones.info/community/59550/rancho-san-diego

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    55% Very High

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

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    47% has burned

    Most recently the 2022 Willow 8 Fire, which burned 1 acre here, one of 9 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    15% 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.

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Land by hazard class

  1. Very High 3,076 acres · 1,246 state, 1,830 local 55%
  2. High 548 acres · 8 state, 540 local 10%
  3. Moderate 374 acres · Local Responsibility Area 7%
  4. Non-wildland 1,406 acres · Local Responsibility Area 25%
  5. Not mapped by CAL FIRE 161 acres · Mostly federal land 3%

5,564 acres of land in all, 1,253 in the State Responsibility Area and 4,150 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. 1970 Laguna Fire Of 174,162 acres in all · Cause: Campfire 2,473 acres
  2. 1950 Sequan #2 Fire Of 5,332 acres in all 1,838 acres
  3. 1983 Unnamed fire Cause: Arson 141 acres
  4. 1983 Unnamed fire Cause: Miscellaneous 109 acres
  5. 2020 Willows Fire 58 acres
  6. 2009 Willow 3 Fire 55 acres
  7. 1983 Unnamed fire Of 56 acres in all 55 acres
  8. 1945 Unnamed fire Of 708 acres in all 38 acres
  9. 2022 Willow 8 Fire 1 acre

In all, 2,606 acres of Rancho San Diego 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 Rancho San Diego

Neighboring communities

  1. Rancho San Diego 55% Very High · this area
  2. Casa de Oro-Mount Helix 1% Moderate · 1% Very High
  3. Crest 96% Very High
  4. El Cajon 4% High · 3% Very High
  5. Granite Hills 52% Very High
  6. Jamul 77% Very High
  7. Spring Valley 32% Very High