ZIP code 92336

San Bernardino County, including Fontana and Rialto

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Report created October 27, 2026 at www.firezones.info/zip/92336

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    11% Very High

    Most of the Very High land is in the Local Responsibility Area, where each city or county adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    27% has burned

    Most recently the 2021 South Fire, which burned 82 acres here, one of 23 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    27% Elevated · 2% 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 1,387 acres · 27 state, 1,360 local 11%
  2. High 972 acres · Local Responsibility Area 8%
  3. Moderate 335 acres · Local Responsibility Area 3%
  4. Non-wildland 10,029 acres · Local Responsibility Area 79%
  5. Not mapped by CAL FIRE 2 acres · Mostly federal land <1%

12,725 acres of land in all, 27 in the State Responsibility Area and 12,696 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. 1988 Texas Fire Of 12,096 acres in all · Cause: Arson 1,972 acres
  2. 1988 Unnamed fire Of 5,244 acres in all 1,836 acres
  3. 1970 Unnamed fire Of 37,472 acres in all · Cause: Miscellaneous 1,019 acres
  4. 2003 Grand Prix Fire Of 50,618 acres in all · Cause: Arson 841 acres
  5. 1980 Summit Fire Of 4,368 acres in all 622 acres
  6. 1979 Sierra Series Fire Of 1,838 acres in all 597 acres
  7. 1911 Unnamed fire 356 acres
  8. 1979 Sierra Fire Of 243 acres in all 223 acres
  9. 1967 Fpd #49 Fire Of 462 acres in all 188 acres
  10. 1967 County Roads #15 Fire Of 453 acres in all 144 acres

And 13 smaller fires. In all, 3,415 acres of ZIP code 92336 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 92336

Neighboring ZIP codes

  1. 92336 11% Very High · this area
  2. 91739 36% Very High
  3. 92335 No hazard zones
  4. 92358 7% Very High
  5. 92376 3% High
  6. 92377 28% High · <1% Very High
  7. 92407 28% Very High