Mosquito Fire

Wildfire in Placer and El Dorado counties, September 2022

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Printed October 28, 2026 from www.firezones.info/fire/8354/mosquito-fire-2022

Key facts

Started September 6, 2022
Contained October 22, 2022, after 46 days
Burned 76,771 acres
Largest fire of 2022 and 77th largest in California's records
Cause Miscellaneous
Buildings 78 destroyed, 14 damaged
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Where it burned

Counties

  1. Placer County 63,375 acres
  2. El Dorado County 13,382 acres

Community

  1. Foresthill 3,423 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.

Buildings damaged

  1. Destroyed Over 50% damaged 78
  2. Major damage 25 to 50% damaged 1
  3. Minor damage 10 to 25% damaged 1
  4. Affected Up to 10% damaged 12

Buildings CAL FIRE inspected after the fire, by how badly each was damaged. Inspectors record homes, businesses and outbuildings within 100 meters of the fire, and cannot always reach every one, so the counts can differ slightly from other reports.

The same land, other fires

Burned before

  1. 1909 Unnamed fire 896 acres shared
  2. 1910 Unnamed fire 2,254 acres in total 234 acres shared
  3. 1916 Unnamed fire 1,408 acres in total · Cause: Miscellaneous 1,262 acres shared
  4. 1917 Miller Diggins Fire 287 acres shared
  5. 1921 Pennsylvania Fire Cause: Miscellaneous 273 acres shared
  6. 1924 Deadwood Fire 27,880 acres in total 17,810 acres shared
  7. 1924 Unnamed fire Cause: Miscellaneous 1,102 acres shared
  8. 1924 Unnamed fire 244 acres in total 222 acres shared
  9. 1925 Deadman's Flat Fire 2,588 acres in total · Cause: Miscellaneous 1,121 acres shared
  10. 1931 Unnamed fire 3,297 acres in total 3,044 acres shared
  11. 1931 Rubicon Fire 1,378 acres shared
  12. 1936 Mckenzie Mill Fire 21,288 acres in total 1,781 acres shared
  13. 1939 Unnamed fire 523 acres shared
  14. 1939 Unnamed fire 523 acres shared
  15. 1960 Volcano Fire 42,596 acres in total · Cause: Smoking 16,903 acres shared
  16. 1960 Volcano Fire 2,136 acres in total 2,068 acres shared
  17. 2003 Codfish Fire Cause: Lightning 841 acres shared
  18. 2006 Ralston Fire 8,421 acres in total · Cause: Miscellaneous 8,207 acres shared
  19. 2013 American Fire 27,431 acres in total · Cause: Miscellaneous 3,188 acres shared
  20. 2014 King Fire 97,685 acres in total · Cause: Arson 1,202 acres shared

And 24 more fires that burned less of the same land. Acres are the land each fire shares with the Mosquito 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