ZIP code 94028

San Mateo and Santa Clara counties, including Portola Valley, Palo Alto and Ladera

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Report created October 31, 2026 at www.firezones.org/zip/94028

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    Map
    1. Very High 792 acres · 54 state, 737 local 7%
    2. High 5,524 acres · 896 state, 4,628 local 50%
    3. Moderate 4,739 acres · 1,985 state, 2,753 local 43%
    4. Non-wildland 87 acres · Local Responsibility Area 1%

    11,142 acres of land in all, 2,936 in the State Responsibility Area and 8,206 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

    Map
    1. 1962 Leib Fire 1,328 acres in total 243 acres here

    In all, 243 acres of ZIP code 94028 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 94028

Neighboring ZIP codes

  1. 94028 7% Very High · this area
  2. 94020 99% High · 1% Very High
  3. 94022 34% Very High
  4. 94025 9% Moderate
  5. 94027 <1% Moderate
  6. 94062 23% Very High
  7. 94304 10% High
  8. 94305 49% Moderate
  9. 95033 54% 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