ZIP code 94546

Alameda County, including Castro Valley

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Report created October 31, 2026 at www.firezones.org/zip/94546

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    Map
    1. Very High 7,319 acres · 6,993 state, 327 local 65%
    2. High 587 acres · 379 state, 208 local 5%
    3. Moderate 233 acres · 40 state, 193 local 2%
    4. Non-wildland 3,054 acres · Local Responsibility Area 27%

    11,194 acres of land in all, 7,411 in the State Responsibility Area and 3,782 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

    No recorded fires

    CAL FIRE has no record of a fire that burned an acre or more here.

    Map

Nearby areas

Communities in ZIP code 94546

Neighboring ZIP codes

  1. 94546 65% Very High · this area
  2. 94516 69% Very High
  3. 94541 2% Moderate · 2% High
  4. 94552 10% Very High
  5. 94556 49% Very High
  6. 94577 3% High
  7. 94578 17% High · <1% Very High
  8. 94580 No hazard zones
  9. 94605 11% Very High
  10. 94619 57% 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