Riverside

City in Riverside County

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Report created October 27, 2026 at www.firezones.info/community/62000/riverside

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    21% Very High

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

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    5% has burned

    Most recently the 2024 Clay Fire, which burned 15 acres here, one of 25 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    15% Elevated · <1% 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 11,117 acres · 8 state, 11,109 local 21%
  2. High 2,712 acres · <1 state, 2,712 local 5%
  3. Moderate 3,535 acres · <1 state, 3,535 local 7%
  4. Non-wildland 34,768 acres · Local Responsibility Area 67%

52,132 acres of land in all, 8 in the State Responsibility Area and 52,124 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. 1959 Hillside Fire Of 1,061 acres in all 831 acres
  2. 1963 Unnamed fire Of 593 acres in all 425 acres
  3. 1981 Spruce (Assist) Fire Of 1,709 acres in all 405 acres
  4. 1980 Unnamed fire Of 416 acres in all 247 acres
  5. 1980 Treemont Fire Of 536 acres in all 234 acres
  6. 1963 Unnamed fire Of 957 acres in all 219 acres
  7. 1980 Quail Fire 200 acres
  8. 2013 Jurupa Fire Of 362 acres in all 181 acres
  9. 1963 Unnamed fire Of 629 acres in all 166 acres
  10. 1968 Unnamed fire Of 810 acres in all 164 acres

And 15 smaller fires. In all, 2,813 acres of Riverside 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 Riverside

Neighboring communities

  1. Riverside 21% Very High · this area
  2. Colton 14% Very High
  3. Corona 29% Very High
  4. El Sobrante 73% Very High
  5. Grand Terrace 30% Very High
  6. Highgrove 50% Very High
  7. Home Gardens 50% Very High
  8. Jurupa Valley 22% Very High
  9. March ARB 38% Very High
  10. Mead Valley 46% Very High
  11. Moreno Valley 28% Very High
  12. Norco 24% Very High
  13. Rialto 14% High · <1% Very High
  14. Woodcrest 36% Very High