ZIP code 94963

Marin County, including San Geronimo and Lagunitas-Forest Knolls

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Report created October 31, 2026 at www.firezones.org/zip/94963

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 9 acres · State Responsibility Area 1%
    2. High 1,013 acres · State Responsibility Area 99%

    1,022 acres of land in all, 1,022 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. 1923 Uknown Fire 31,769 acres in total 1,005 acres here
    2. — Uknown Fire 51 acres in total 22 acres here

    The most recent was the 1923 Uknown Fire, which burned 1,005 acres here. In all, 1,005 acres of ZIP code 94963 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 94963

Neighboring ZIP codes

  1. 94963 99% High · 1% Very High · this area
  2. 94933 89% High · 1% Very High
  3. 94941 56% Very High
  4. 94946 82% High · 1% Very High
  5. 94973 94% High · <1% 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