San Bernardino

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 11,519 acres · 362 state, 11,157 local 29%
  2. High 3,799 acres · 1 state, 3,798 local 9%
  3. Moderate 1,368 acres · 2 state, 1,366 local 3%
  4. Non-wildland 22,647 acres · Local Responsibility Area 56%
  5. Not mapped by CAL FIRE 999 acres · Mostly federal land 2%

  40,332 acres of land in all, 365 in the State Responsibility Area and 38,968 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 107 fires that burned here

  Map
  1. 2003 Old Fire 91,428 acres in total · Cause: Arson 9,234 acres here
  2. 1980 Panorama Fire 23,626 acres in total 6,669 acres here
  3. 1922 Unnamed fire 19,326 acres in total 2,757 acres here
  4. 1938 Unnamed fire 12,493 acres in total 2,146 acres here
  5. 1956 East Highland Fire 14,444 acres in total 1,909 acres here
  6. 1923 Unnamed fire 1,241 acres in total 977 acres here
  7. 1953 Arrowhead Springs Fire 3,105 acres in total 855 acres here
  8. 1944 Unnamed fire 1,181 acres in total 810 acres here
  9. 1954 Cable Canyon Fire 3,921 acres in total 806 acres here
  10. 2002 Arrowhead Fire 2,579 acres in total · Cause: Miscellaneous 734 acres here

  And 97 smaller fires. The most recent was the 2024 Line Fire, which burned 299 acres here. In all, 13,946 acres of San Bernardino 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