Floriston

Community in Nevada County

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Report created October 31, 2026 at www.firezones.org/community/24526/floriston

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 461 acres · State Responsibility Area 76%
    2. Not mapped by CAL FIRE 147 acres · Mostly federal land 24%

    608 acres of land in all, 461 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. 2001 Martis Fire 14,127 acres in total · Cause: Campfire 444 acres here
    2. 1924 Unnamed fire 14,671 acres in total · Cause: Miscellaneous 377 acres here
    3. 1973 Unnamed fire 493 acres in total 230 acres here

    The most recent was the 2001 Martis Fire, which burned 444 acres here. In all, 608 acres of Floriston 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

ZIP codes in Floriston

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