San Marcos

City in San Diego County

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Report created October 27, 2026 at www.firezones.info/community/68196/san-marcos

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    54% Very High

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

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    39% has burned

    Most recently the 2014 Cocos Fire, which burned 1,117 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

    49% 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 8,422 acres · 10 state, 8,412 local 54%
  2. High 938 acres · 2 state, 936 local 6%
  3. Moderate 860 acres · 1 state, 860 local 5%
  4. Non-wildland 5,521 acres · Local Responsibility Area 35%

15,742 acres of land in all, 13 in the State Responsibility Area and 15,729 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 Harmony Fire Of 9,359 acres in all · Cause: Equipment use 3,627 acres
  2. 1943 Unnamed fire Of 40,248 acres in all 3,470 acres
  3. 1970 Unnamed fire Of 1,917 acres in all 1,517 acres
  4. 2014 Cocos Fire Of 1,995 acres in all 1,117 acres
  5. 1988 Outside Origin #11 Fire Of 247 acres in all · Cause: Miscellaneous 219 acres
  6. 2007 Coronado Hills Fire 59 acres
  7. 1982 Local Assist #12 Fire Cause: Miscellaneous 39 acres
  8. 1985 Outside Origin #5 Fire Cause: Miscellaneous 36 acres
  9. 1994 Questhaven Fire Of 65 acres in all 34 acres
  10. 1960 Outside Origin #29 Fire Of 746 acres in all 11 acres

And 1 smaller fire. In all, 6,203 acres of San Marcos 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 Marcos

Neighboring communities

  1. San Marcos 54% Very High · this area
  2. Carlsbad 33% Very High
  3. Elfin Forest 100% Very High
  4. Encinitas 32% Very High
  5. Escondido 46% Very High
  6. Harmony Grove >99% Very High
  7. Lake San Marcos 51% Very High
  8. Vista 14% Very High