Mill Valley

City in Marin County

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Report created October 31, 2026 at www.firezones.org/community/47710/mill-valley

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 799 acres · 2 state, 797 local 26%
    2. High 1,063 acres · 6 state, 1,057 local 34%
    3. Moderate 332 acres · 2 state, 330 local 11%
    4. Non-wildland 922 acres · Local Responsibility Area 30%

    3,116 acres of land in all, 10 in the State Responsibility Area and 3,106 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

    Fires CAL FIRE has recorded here

    1. 1929 Mill Valley Fire 864 acres in total 611 acres here
    2. — Uknown Fire 462 acres in total 234 acres here
    3. — Uknown Fire 276 acres in total 139 acres here
    4. — Uknown Fire 72 acres in total 70 acres here
    5. — Uknown Fire 45 acres in total 43 acres here
    6. — Uknown Fire 32 acres in total 31 acres here
    7. — Uknown Fire 112 acres in total 17 acres here

    The most recent was the 1929 Mill Valley Fire, which burned 611 acres here. In all, 1,133 acres of Mill Valley 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 Mill Valley

Neighboring communities

  1. Mill Valley 26% Very High · this area
  2. Alto 3% Moderate
  3. Corte Madera 41% Moderate · <1% Very High
  4. Kentfield 73% Moderate · <1% Very High
  5. Larkspur 39% Moderate · 4% Very High
  6. Marin City 38% High
  7. Strawberry 17% Moderate
  8. Tamalpais-Homestead Valley 31% High · 2% Very High
  9. Tiburon 26% 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