ZIP code 95511

Humboldt County, including Alderpoint

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Report created October 31, 2026 at www.firezones.org/zip/95511

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 24,012 acres · State Responsibility Area 90%
    2. High 2,442 acres · State Responsibility Area 9%
    3. Not mapped by CAL FIRE 94 acres · Mostly federal land <1%

    26,548 acres of land in all, 26,454 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

    Fires CAL FIRE has recorded here

    1. 1954 Capital Lumber Co. Fire 1,424 acres in total 1,160 acres here
    2. 2015 Steelhead 1-54 Fire 1,403 acres in total · Cause: Lightning 1,051 acres here
    3. 2025 Bridge Fire Cause: Vehicle 417 acres here
    4. 1931 Jeans Ranch Fire 239 acres in total · Cause: Miscellaneous 236 acres here
    5. 1965 Stewart Fire 660 acres in total 103 acres here
    6. 2008 Stewart Fire 169 acres in total · Cause: Power lines 86 acres here
    7. 2006 Casterlin Fire Cause: Power lines 34 acres here
    8. 2015 Dobbyn 1-57 Fire 787 acres in total · Cause: Lightning 25 acres here

    The most recent was the 2025 Bridge Fire, which burned 417 acres here. In all, 3,101 acres of ZIP code 95511 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

Nearby areas

Communities in ZIP code 95511

Neighboring ZIP codes

  1. 95511 90% Very High · this area
  2. 95514 81% Very High
  3. 95542 31% Very High
  4. 95595 29% Very High

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published June 27, 2025, local map February 2, 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published July 28, 2026

This site is independent and not affiliated with CAL FIRE, so for an official determination, check with the agency or your city or county. How we read the data