ZIP code 94550

Alameda and Santa Clara counties, including Livermore

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Report created October 27, 2026 at www.firezones.info/zip/94550

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    74% Very High

    All of the Very High land is in the State Responsibility Area, where the State Fire Marshal's zones apply.

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  • Fire history

    Share of the land inside a recorded wildfire perimeter

    51% has burned

    Most recently the 2025 Antonio Fire, which burned 18 acres here, one of 61 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    72% Elevated

    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. Very High 129,097 acres · State Responsibility Area 74%
  2. High 28,007 acres · 27,917 state, 90 local 16%
  3. Moderate 8,664 acres · 7,593 state, 1,071 local 5%
  4. Non-wildland 7,305 acres · Local Responsibility Area 4%
  5. Not mapped by CAL FIRE 2,232 acres · Mostly federal land 1%

175,306 acres of land in all, 164,607 in the State Responsibility Area and 8,467 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

Largest fires

  1. 2020 Scu Lightning Complex Of 396,824 acres in all · Cause: Lightning 62,467 acres
  2. 1952 Saunders Fire 7,218 acres
  3. 1955 Fletcher Fire 6,517 acres
  4. 2003 Devil Fire Cause: Lightning 5,440 acres
  5. 2003 Jump Fire Cause: Lightning 4,893 acres
  6. 1983 Del Valle P.g.&E. Fire Cause: Equipment use 4,713 acres
  7. 2005 Tesla Fire Of 6,440 acres in all · Cause: Arson 2,977 acres
  8. 2015 Tesla Fire Of 2,990 acres in all 2,802 acres
  9. 1952 Shanti Ashrama Fire Of 5,458 acres in all 2,164 acres
  10. 2006 Canyon Fire Of 34,218 acres in all 1,987 acres

And 51 smaller fires. In all, 90,141 acres of ZIP code 94550 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

Communities in ZIP code 94550

Neighboring ZIP codes

  1. 94550 74% Very High · this area
  2. 94551 10% Very High
  3. 94566 26% High
  4. 94586 41% Very High
  5. 94588 73% High · 2% Very High
  6. 95135 86% Very High
  7. 95140 85% Very High
  8. 95304 22% Very High
  9. 95363 69% Very High
  10. 95377 15% Very High
  11. 95391 61% High