ZIP code 90631

Orange and Los Angeles counties, including La Habra and La Habra Heights

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Report created October 27, 2026 at www.firezones.info/zip/90631

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    24% 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

    9% has burned

    Most recently the 2020 Colima Fire, which burned 6 acres here, one of 15 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    33% 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 2,143 acres · 35 state, 2,108 local 24%
  2. High 430 acres · Local Responsibility Area 5%
  3. Moderate 423 acres · Local Responsibility Area 5%
  4. Non-wildland 5,951 acres · Local Responsibility Area 67%
  5. Not mapped by CAL FIRE 1 acres · Mostly federal land <1%

8,948 acres of land in all, 35 in the State Responsibility Area and 8,912 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. 1945 Hacienda No. 162 Fire Of 856 acres in all 448 acres
  2. 1939 La Habra No. 33 Fire Of 1,521 acres in all 376 acres
  3. 1955 Hacienda Fire Of 1,148 acres in all 163 acres
  4. 1978 King Fire Of 125 acres in all 117 acres
  5. 1979 Catalina Fire Of 886 acres in all 81 acres
  6. 1930 Unnamed fire Of 243 acres in all 72 acres
  7. 1929 Workman No. 89 Fire Of 307 acres in all 70 acres
  8. 1944 Howard Fire Of 147 acres in all 59 acres
  9. 1970 Colima Fire Of 323 acres in all 48 acres
  10. 1970 Fullerton Fire Of 3,381 acres in all 27 acres

And 5 smaller fires. In all, 784 acres of ZIP code 90631 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 90631

Neighboring ZIP codes

  1. 90631 24% Very High · this area
  2. 90603 4% Very High
  3. 90604 No hazard zones
  4. 90605 29% Very High
  5. 90638 1% Very High
  6. 91745 38% Very High
  7. 91748 45% Very High
  8. 92821 57% Very High
  9. 92833 20% Very High
  10. 92835 5% Very High