Humboldt County

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 493,625 acres · 492,749 state, 875 local 21%
  2. High 677,746 acres · 675,075 state, 2,671 local 29%
  3. Moderate 471,837 acres · 444,698 state, 27,140 local 20%
  4. Non-wildland 47,984 acres · Local Responsibility Area 2%
  5. Not mapped by CAL FIRE 620,283 acres · Mostly federal land 27%

  2,311,475 acres of land in all, 1,612,522 in the State Responsibility Area and 78,670 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 671 fires that burned here

  Map
  1. 1999 Megram Fire 125,073 acres in total · Cause: Lightning 59,243 acres here
  2. 2020 Red Salmon Complex 143,836 acres in total · Cause: Lightning 53,191 acres here
  3. 1955 Healy Logging Co. Fire 22,509 acres here
  4. 2022 Campbell Fire 30,133 acres in total 19,608 acres here
  5. 1936 A-Line Fire 17,531 acres here
  6. 1964 Mattole Fire 16,467 acres here
  7. 1945 Unnamed fire 15,791 acres here
  8. 1938 Red Cap Fire 14,868 acres in total 14,549 acres here
  9. 1973 Finley Creek Fire 12,808 acres here
  10. 2003 Honeydew Fire Cause: Lightning 11,791 acres here

  And 661 smaller fires. The most recent was the 2025 Bridge Fire, which burned 417 acres here. In all, 456,816 acres of Humboldt 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