Topanga Fire

Wildfire in Ventura and Los Angeles counties, September 2005

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Printed October 28, 2026 from www.firezones.info/fire/6246/topanga-fire-2005

Key facts

Started September 28, 2005
Contained October 10, 2005, after 12 days
Burned 23,396 acres
2nd largest fire of 2005
Cause Not recorded
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Where it burned

Counties

  1. Ventura County 19,524 acres
  2. Los Angeles County 3,853 acres

Communities

  1. Los Angeles 2,239 acres
  2. Bell Canyon 1,163 acres
  3. Simi Valley 876 acres
  4. Oak Park 780 acres
  5. Santa Susana 546 acres
  6. Calabasas 403 acres
  7. Thousand Oaks 402 acres

Acres are the land the fire burned in each county and community, and places where it burned less than an acre are not listed. Communities are cities, towns and the unincorporated places the Census Bureau names, so land outside any of them is counted only in its county.

The same land, other fires

Burned before

  1. 1947 Manor No. 144 Fire 1,307 acres in total 826 acres shared
  2. 1949 Simi Hills Fire 20,579 acres in total 14,061 acres shared
  3. 1951 Susana Knolls Fire 2,348 acres in total 2,294 acres shared
  4. 1952 Susana Knolls Fire 1,254 acres shared
  5. 1957 Santa Susana Pass Fire 4,734 acres in total 1,428 acres shared
  6. 1966 Black Canyon Fire 1,824 acres shared
  7. 1966 Black Canyon Fire 868 acres shared
  8. 1967 Devonshire-Parker Fire 23,094 acres in total 14,255 acres shared
  9. 1970 Clampitt Fire 115,537 acres in total · Cause: Power lines 16,770 acres shared
  10. 1979 Box Canyon Fire 963 acres in total 945 acres shared
  11. 1981 Oat Fire 17,787 acres in total 4,647 acres shared
  12. 1982 Dayton Canyon Fire 43,097 acres in total 10,000 acres shared
  13. 1985 Box Canyon (Pioneer) Fire 1,243 acres shared
  14. 1985 Hummingbird Fire 2,383 acres in total 855 acres shared
  15. 1988 Keuhner Fire 3,819 acres in total 848 acres shared
  16. 1993 Chatsworth Fire 1,931 acres in total 1,801 acres shared
  17. 2000 Calabasas Fire 1,024 acres shared
  18. 2003 Simi Fire 107,570 acres in total 955 acres shared

Burned again

  1. 2018 Woolsey Fire 89,551 acres in total · Cause: Power lines 14,496 acres shared
  2. 2025 Kenneth Fire 1,012 acres in total 970 acres shared

And 43 more fires that burned less of the same land. Acres are the land each fire shares with the Topanga Fire, and fires that shared 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 history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Building damage
CAL FIRE Damage Inspection
Updated 19 October 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