ZIP code 94555

Alameda County, including Fremont and Union City

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Report created October 31, 2026 at www.firezones.org/zip/94555

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    Map
    1. Non-wildland 4,971 acres · Local Responsibility Area 56%
    2. Not mapped by CAL FIRE 3,863 acres · Mostly federal land 44%

    8,834 acres of land in all, 4,971 of it in the Local 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

    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 94555

Neighboring ZIP codes

  1. 94555 No hazard zones · this area
  2. 94536 31% High
  3. 94560 No hazard zones
  4. 94587 14% 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