Riverside County

County in California

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Report created October 27, 2026 at www.firezones.info/county/065/riverside

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    15% Very High

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

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    20% has burned

    Most recently the 2025 Crump Fire, which burned 55 acres here, one of 1,336 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    12% 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 691,268 acres · 533,625 state, 157,643 local 15%
  2. High 74,774 acres · 37,857 state, 36,917 local 2%
  3. Moderate 498,694 acres · 63,535 state, 435,159 local 11%
  4. Non-wildland 557,390 acres · Local Responsibility Area 12%
  5. Not mapped by CAL FIRE 2,851,544 acres · Mostly federal land 61%

4,673,670 acres of land in all, 635,017 in the State Responsibility Area and 1,187,109 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. 1928 Unnamed fire 60,174 acres
  2. 1944 Unnamed fire Of 58,790 acres in all 52,312 acres
  3. 1980 Dry Falls Fire 41,751 acres
  4. 2006 Esperanza Fire Cause: Arson 40,177 acres
  5. 1980 Turner Fire Of 31,447 acres in all 30,268 acres
  6. 1998 Edna Fire Cause: Arson 28,136 acres
  7. 2022 Fairview Fire 28,097 acres
  8. 2013 Mountain Fire Cause: Miscellaneous 27,519 acres
  9. 1945 Unnamed fire Of 37,888 acres in all 26,842 acres
  10. 1967 Unnamed fire 25,620 acres

And 1,326 smaller fires. In all, 927,008 acres of Riverside County 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

Cities and towns in Riverside County

Unincorporated communities in Riverside County

ZIP codes in Riverside County

75

Neighboring counties

  1. Riverside County 15% Very High · this area
  2. Imperial County 12% Moderate · <1% High
  3. Orange County 33% Very High
  4. San Bernardino County 13% Moderate · 2% Very High
  5. San Diego County 37% Very High