San Diego County

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 1,012,486 acres · 855,169 state, 157,318 local 37%
  2. High 181,622 acres · 128,113 state, 53,509 local 7%
  3. Moderate 465,519 acres · 183,401 state, 282,118 local 17%
  4. Non-wildland 260,538 acres · Local Responsibility Area 10%
  5. Not mapped by CAL FIRE 804,808 acres · Mostly federal land 30%

  2,724,973 acres of land in all, 1,166,682 in the State Responsibility Area and 753,483 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 1,631 fires that burned here

  Map
  1. 2003 Cedar Fire Cause: Equipment use 270,686 acres here
  2. 1970 Laguna Fire Cause: Campfire 174,162 acres here
  3. 2007 Witch Fire Cause: Miscellaneous 162,070 acres here
  4. 2007 Harris 2 Fire 90,715 acres here
  5. 1944 Unnamed fire Cause: Miscellaneous 64,417 acres here
  6. 1928 Unnamed fire Cause: Miscellaneous 62,962 acres here
  7. 1950 Conejos Fire Cause: Miscellaneous 62,847 acres here
  8. 1913 Unnamed fire 62,426 acres here
  9. 2002 Pines Fire Cause: Power lines 61,691 acres here
  10. 2003 Paradise Fire Cause: Arson 56,546 acres here

  And 1,621 smaller fires. The most recent was the 2025 Border 18 Fire, which burned 60 acres here. In all, 1,479,549 acres of San Diego County 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