ZIP code 94507

Contra Costa County, including Alamo and Castle Hill

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Report created October 31, 2026 at www.firezones.org/zip/94507

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    Map
    1. Very High 353 acres · State Responsibility Area 5%
    2. High 3,600 acres · 2,859 state, 741 local 50%
    3. Moderate 770 acres · 77 state, 693 local 11%
    4. Non-wildland 2,444 acres · Local Responsibility Area 34%

    7,167 acres of land in all, 3,289 in the State Responsibility Area and 3,878 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. 1961 Parker Fire 224 acres in total 54 acres here

    In all, 54 acres of ZIP code 94507 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 94507

Neighboring ZIP codes

  1. 94507 50% High · 5% Very High · this area
  2. 94506 13% Very High
  3. 94517 88% Very High
  4. 94526 16% High · <1% Very High
  5. 94528 52% High · 1% Very High
  6. 94556 49% Very High
  7. 94583 5% Very High
  8. 94595 37% High
  9. 94596 23% High
  10. 94598 11% 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