ZIP code 91917

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 17,010 acres · State Responsibility Area 51%
  2. Not mapped by CAL FIRE 16,201 acres · Mostly federal land 49%

  33,212 acres of land in all, 17,010 of it in the State Responsibility Area. 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 103 fires that burned here

  Map
  1. 2007 Harris 2 Fire 90,728 acres in total 26,558 acres here
  2. 1995 Sycamore Fire 9,433 acres in total 8,780 acres here
  3. 2003 Mine/Otay Fire 44,734 acres in total · Cause: Miscellaneous 6,983 acres here
  4. 1948 Unnamed fire 7,884 acres in total · Cause: Miscellaneous 4,450 acres here
  5. 1953 Bronco Flats Fire 8,817 acres in total · Cause: Miscellaneous 3,492 acres here
  6. 1979 Unnamed fire 6,151 acres in total 3,300 acres here
  7. 1970 Laguna Fire 174,162 acres in total · Cause: Campfire 2,971 acres here
  8. 2022 Border 32 Fire 4,456 acres in total 2,876 acres here
  9. 2005 Border#50 Fire 3,863 acres in total · Cause: Miscellaneous 2,695 acres here
  10. 2006 Horse Fire 16,678 acres in total · Cause: Campfire 2,615 acres here

  And 93 smaller fires. The most recent was the 2025 Border 18 Fire, which burned 60 acres here. In all, 33,168 acres of ZIP code 91917 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