ZIP code 92821

Orange County, including Brea

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Report created October 31, 2026 at www.firezones.org/zip/92821

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 5,210 acres · 3,190 state, 2,020 local 57%
    2. High 258 acres · Local Responsibility Area 3%
    3. Moderate 248 acres · Local Responsibility Area 3%
    4. Non-wildland 3,343 acres · Local Responsibility Area 37%
    5. Not mapped by CAL FIRE 3 acres · Mostly federal land <1%

    9,062 acres of land in all, 3,190 in the State Responsibility Area and 5,869 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 18 fires that burned here

    1. 2008 Freeway Fire 30,305 acres in total · Cause: Vehicle 3,526 acres here
    2. 1980 Carbon Fire 6,955 acres in total 3,021 acres here
    3. 1990 Carbon Canyon Fire 4,978 acres in total 1,379 acres here
    4. 1930 Unnamed fire 733 acres in total 633 acres here
    5. 1994 Carbon Fire 757 acres in total 591 acres here
    6. 2011 Carbon Canyon Fire 508 acres in total 448 acres here
    7. 1994 Wagon Fire 570 acres in total 438 acres here
    8. 1978 Soquel Fire 3,934 acres in total 389 acres here
    9. 1976 Tonner Fire 203 acres here
    10. 1970 Tonner Fire 65 acres in total 64 acres here

    And 8 smaller fires. The most recent was the 2021 Niguel Fire, which burned 22 acres here. In all, 3,684 acres of ZIP code 92821 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 92821

Neighboring ZIP codes

  1. 92821 57% Very High · this area
  2. 90631 24% Very High
  3. 91709 73% Very High
  4. 91748 45% Very High
  5. 91765 55% Very High
  6. 92823 92% Very High
  7. 92831 9% Very High
  8. 92835 5% Very High
  9. 92870 <1% Moderate · <1% Very High
  10. 92886 29% 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