Mill Valley

City in Marin County

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Report created October 27, 2026 at www.firezones.info/community/47710/mill-valley

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    26% Very High

    Most of the Very High land is in the Local Responsibility Area, where the City of Mill Valley adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    36% has burned

    Most recently the 1929 Mill Valley Fire, which burned 611 acres here, one of 7 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    66% Extreme

    Utilities may shut off power in the CPUC High Fire-Threat District in fire weather, and homes outside it can lose power when their lines run through it.

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Land by 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 1 April 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

Fires that burned here

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

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

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published 27 June 2025, local map 2 February 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Power line fire risk
California Public Utilities Commission
Published 23 February 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

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