Blackhawk

Community in Contra Costa County

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Report created October 31, 2026 at www.firezones.org/community/06928/blackhawk

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    1. Very High 393 acres · 121 state, 272 local 11%
    2. High 1,389 acres · 826 state, 563 local 37%
    3. Moderate 903 acres · 45 state, 858 local 24%
    4. Non-wildland 1,020 acres · Local Responsibility Area 28%

    3,704 acres of land in all, 992 in the State Responsibility Area and 2,712 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

    1. 1970 Tassajara Fire 446 acres here
    2. 1981 Blackhawk Fire 2,361 acres in total · Cause: Arson 31 acres here

    The most recent was the 1981 Blackhawk Fire, which burned 31 acres here. In all, 477 acres of Blackhawk 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

ZIP codes in Blackhawk

Neighboring communities

  1. Blackhawk 11% Very High · this area
  2. Camino Tassajara 10% High
  3. Danville 12% High · <1% Very High
  4. Diablo 60% High · 1% Very High
  5. San Ramon 12% 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