ZIP code 91916

San Diego County, including Descanso

Search for an address

Report created October 27, 2026 at www.firezones.info/zip/91916

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    49% Very High

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

    Open map

  • Fire history

    Share of the land inside a recorded wildfire perimeter

    96% has burned

    Most recently the 2021 Road Fire, which burned 83 acres here, one of 38 fires on record.

    Open map

  • Power line fire risk

    Share of the land in the High Fire-Threat District

    100% 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.

    Open map

Land by hazard class

  1. Very High 19,331 acres · State Responsibility Area 49%
  2. Not mapped by CAL FIRE 20,287 acres · Mostly federal land 51%

39,618 acres of land in all, 19,331 of it in the State Responsibility Area. 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. 2003 Cedar Fire Of 270,686 acres in all · Cause: Equipment use 36,518 acres
  2. 1950 Conejos Fire Of 62,849 acres in all · Cause: Miscellaneous 29,887 acres
  3. 1970 Boulder Fire Of 12,830 acres in all · Cause: Miscellaneous 7,255 acres
  4. 1934 Unnamed fire Cause: Miscellaneous 4,488 acres
  5. 1911 Unnamed fire Of 7,307 acres in all · Cause: Miscellaneous 3,410 acres
  6. 1956 Outside Origin #42 Fire Of 46,602 acres in all · Cause: Miscellaneous 2,588 acres
  7. 2007 Witch Fire Of 162,070 acres in all · Cause: Miscellaneous 1,619 acres
  8. 1924 Unnamed fire Of 5,166 acres in all · Cause: Miscellaneous 1,121 acres
  9. 1911 Unnamed fire Cause: Lightning 1,058 acres
  10. 1986 Peak Fire Cause: Campfire 1,020 acres

And 28 smaller fires. In all, 38,184 acres of ZIP code 91916 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

Communities in ZIP code 91916

Neighboring ZIP codes

  1. 91916 49% Very High · this area
  2. 91901 53% Very High
  3. 91931 27% Very High
  4. 91948 19% Very High
  5. 91962 25% Very High
  6. 92036 35% Very High