ZIP code 92507

Riverside County, including Riverside, Highgrove and Grand Terrace

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Report created October 27, 2026 at www.firezones.info/zip/92507

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    46% 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

    25% has burned

    Most recently the 2017 Blaine Fire, which burned 211 acres here, one of 32 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    14% 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 6,285 acres · 2,404 state, 3,882 local 46%
  2. High 612 acres · Local Responsibility Area 4%
  3. Moderate 477 acres · Local Responsibility Area 3%
  4. Non-wildland 6,338 acres · Local Responsibility Area 46%

13,713 acres of land in all, 2,404 in the State Responsibility Area and 11,310 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. 1981 Spruce (Assist) Fire Of 1,709 acres in all 1,310 acres
  2. 1993 Box Springs Fire Of 2,806 acres in all · Cause: Miscellaneous 1,226 acres
  3. 1963 Unnamed fire Of 957 acres in all 725 acres
  4. 2017 Opera Fire Of 1,000 acres in all · Cause: Vehicle 672 acres
  5. 1963 Unnamed fire Of 629 acres in all 613 acres
  6. 1963 Unnamed fire 592 acres
  7. 1980 Treemont Fire 535 acres
  8. 1970 Springs Fire 443 acres
  9. 1980 Springs Fire Of 589 acres in all 428 acres
  10. 1980 Unnamed fire 416 acres

And 22 smaller fires. In all, 3,392 acres of ZIP code 92507 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 92507

Neighboring ZIP codes

  1. 92507 46% Very High · this area
  2. 92313 28% Very High
  3. 92324 48% Very High
  4. 92501 22% Moderate
  5. 92506 30% Very High
  6. 92508 21% Very High
  7. 92518 38% Very High
  8. 92521 49% Very High
  9. 92553 1% Moderate · 1% Very High
  10. 92557 67% Very High