ZIP code 95377

San Joaquin and Alameda counties, including Tracy

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Report created October 27, 2026 at www.firezones.info/zip/95377

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    15% 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

    63% has burned

    Most recently the 2025 Midway Fire, which burned 261 acres here, one of 57 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    <1% 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 10,300 acres · State Responsibility Area 15%
  2. High 37,638 acres · 34,278 state, 3,360 local 53%
  3. Moderate 5,214 acres · 2,985 state, 2,229 local 7%
  4. Non-wildland 11,175 acres · Local Responsibility Area 16%
  5. Not mapped by CAL FIRE 6,066 acres · Mostly federal land 9%

70,393 acres of land in all, 47,562 in the State Responsibility Area and 16,765 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. 2024 Corral Fire 14,063 acres
  2. 2009 Corral Fire Of 12,243 acres in all · Cause: Miscellaneous 12,083 acres
  3. 1984 Site 300 #3 Fire 7,545 acres
  4. 2020 Scu Lightning Complex Of 396,824 acres in all · Cause: Lightning 7,528 acres
  5. 2006 Midway Fire Cause: Power lines 5,487 acres
  6. 2005 Tesla Fire Of 6,440 acres in all · Cause: Arson 3,459 acres
  7. 1970 Carnegie #3 Fire Of 4,390 acres in all 2,640 acres
  8. 2009 Explosives Fire Cause: Power lines 1,988 acres
  9. 1994 Wheel #1 & #2 Fire Cause: Vehicle 1,601 acres
  10. 1967 Site 300 #2 Fire 1,454 acres

And 47 smaller fires. In all, 44,035 acres of ZIP code 95377 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 95377

Neighboring ZIP codes

  1. 95377 15% Very High · this area
  2. 94550 74% Very High
  3. 94551 10% Very High
  4. 95304 22% Very High
  5. 95376 No hazard zones
  6. 95391 61% High