ZIP code 94551

Alameda and Contra Costa counties, including Livermore

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Report created October 31, 2026 at www.firezones.org/zip/94551

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE 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 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

    The 10 largest of 17 fires that burned here

    1. 2020 Scu Lightning Complex 396,824 acres in total · Cause: Lightning 2,552 acres here
    2. 1967 Vasco Fire 1,399 acres in total 1,150 acres here
    3. 1998 580 #6 Fire 999 acres here
    4. 1966 Fusee Fire 591 acres in total 565 acres here
    5. 1995 Kenetech #7 Fire 436 acres in total · Cause: Equipment use 426 acres here
    6. 2024 Flynn Fire 429 acres in total · Cause: Vehicle 356 acres here
    7. 1961 S.p.r.r. #3 Fire 347 acres here
    8. 1951 Dry Creek Fire 1,078 acres in total 343 acres here
    9. 1970 Jackson Fire 283 acres in total 276 acres here
    10. 1961 Bailey Fire 244 acres here

    And 7 smaller fires. The most recent was the 2024 Flynn Fire, which burned 356 acres here. 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

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

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