ZIP code 94551

Alameda and Contra Costa counties, including Livermore

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Report created October 27, 2026 at www.firezones.info/zip/94551

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    10% 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

    10% has burned

    Most recently the 2024 Flynn Fire, which burned 356 acres here, one of 17 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    21% 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. Very High 5,558 acres · State Responsibility Area 10%
  2. High 35,945 acres · 35,092 state, 853 local 68%
  3. Moderate 5,293 acres · 3,046 state, 2,248 local 10%
  4. Non-wildland 6,249 acres · Local Responsibility Area 12%
  5. Not mapped by CAL FIRE 124 acres · Mostly federal land <1%

53,169 acres of land in all, 43,695 in the State Responsibility Area and 9,350 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 2,552 acres
  2. 1967 Vasco Fire Of 1,399 acres in all 1,150 acres
  3. 1998 580 #6 Fire 999 acres
  4. 1966 Fusee Fire Of 591 acres in all 565 acres
  5. 1995 Kenetech #7 Fire Of 436 acres in all · Cause: Equipment use 426 acres
  6. 2024 Flynn Fire Of 429 acres in all · Cause: Vehicle 356 acres
  7. 1961 S.p.r.r. #3 Fire 347 acres
  8. 1951 Dry Creek Fire Of 1,078 acres in all 343 acres
  9. 1970 Jackson Fire Of 283 acres in all 276 acres
  10. 1961 Bailey Fire 244 acres

And 7 smaller fires. In all, 5,444 acres of ZIP code 94551 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 94551

Neighboring ZIP codes

  1. 94551 10% Very High · this area
  2. 94513 9% Very High
  3. 94514 60% High
  4. 94517 88% Very High
  5. 94550 74% Very High
  6. 94566 26% High
  7. 94568 25% High
  8. 94588 73% High · 2% Very High
  9. 95377 15% Very High
  10. 95391 61% High