ZIP code 92507

Riverside County, including Riverside, Highgrove and Grand Terrace

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Report created October 31, 2026 at www.firezones.org/zip/92507

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE 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 April 1, 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

  • Fire history

    The 10 largest of 32 fires that burned here

    1. 1981 Spruce (Assist) Fire 1,709 acres in total 1,310 acres here
    2. 1993 Box Springs Fire 2,806 acres in total · Cause: Miscellaneous 1,226 acres here
    3. 1963 Unnamed fire 957 acres in total 725 acres here
    4. 2017 Opera Fire 1,000 acres in total · Cause: Vehicle 672 acres here
    5. 1963 Unnamed fire 629 acres in total 613 acres here
    6. 1963 Unnamed fire 592 acres here
    7. 1980 Treemont Fire 535 acres here
    8. 1970 Springs Fire 443 acres here
    9. 1980 Springs Fire 589 acres in total 428 acres here
    10. 1980 Unnamed fire 416 acres here

    And 22 smaller fires. The most recent was the 2017 Blaine Fire, which burned 211 acres here. 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

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

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published June 27, 2025, local map February 2, 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published July 28, 2026

This site is independent and not affiliated with CAL FIRE, so for an official determination, check with the agency or your city or county. How we read the data