ZIP code 90631

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  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 acre · 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 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 15 fires that burned here

  Map
  1. 1945 Hacienda No. 162 Fire 856 acres in total 448 acres here
  2. 1939 La Habra No. 33 Fire 1,521 acres in total 376 acres here
  3. 1955 Hacienda Fire 1,148 acres in total 163 acres here
  4. 1978 King Fire 125 acres in total 117 acres here
  5. 1979 Catalina Fire 886 acres in total 81 acres here
  6. 1930 Unnamed fire 243 acres in total 72 acres here
  7. 1929 Workman No. 89 Fire 307 acres in total 70 acres here
  8. 1944 Howard Fire 147 acres in total 59 acres here
  9. 1970 Colima Fire 323 acres in total 48 acres here
  10. 1970 Fullerton Fire 3,381 acres in total 27 acres here

  And 5 smaller fires. The most recent was the 2020 Colima Fire, which burned 6 acres here. 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