Walnut Creek

City in Contra Costa County

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Report created October 27, 2026 at www.firezones.info/community/83346/walnut-creek

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    28% High

    Most of the High land is in the Local Responsibility Area, where the City of Walnut Creek adopts the zones CAL FIRE recommends.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    1% has burned

    The 1961 Parker Fire burned 177 acres here.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    14% Extreme

    Utilities may shut off power in the CPUC High Fire-Threat District in fire weather, and homes outside it can lose power when their lines run through it.

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Land by hazard class

  1. High 3,541 acres · <1 state, 3,541 local 28%
  2. Moderate 1,958 acres · Local Responsibility Area 15%
  3. Non-wildland 7,155 acres · Local Responsibility Area 57%

12,655 acres of land in all, <1 in the State Responsibility Area and 12,654 in the Local. State zones are the ones the State Fire Marshal designated, in effect since 1 April 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

Fires that burned here

  1. 1961 Parker Fire Of 224 acres in all 177 acres

In all, 177 acres of Walnut Creek 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

Sources

Fire hazard severity zones
CAL FIRE Office of the State Fire Marshal
State map published 27 June 2025, local map 2 February 2026
Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Power line fire risk
California Public Utilities Commission
Published 23 February 2026

This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data

Nearby areas

ZIP codes in Walnut Creek

Neighboring communities

  1. Walnut Creek 28% High · this area
  2. Acalanes Ridge 6% Moderate
  3. Alamo 50% High
  4. Castle Hill 42% High
  5. Concord 7% High · <1% Very High
  6. Contra Costa Centre No hazard zones
  7. Lafayette 55% High · <1% Very High
  8. Moraga 38% Very High
  9. North Gate 88% High
  10. Pleasant Hill 9% Moderate · 2% High
  11. Reliez Valley 64% High
  12. San Miguel 5% High
  13. Saranap 19% Moderate
  14. Shell Ridge 16% High