ZIP code 95383

Tuolumne County, including Twain Harte, Mi-Wuk Village, Soulsbyville and others

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Report created October 27, 2026 at www.firezones.info/zip/95383

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    34% 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

    26% has burned

    Most recently the 2020 Quarter Fire, which burned 12 acres here, one of 39 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    46% 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 14,675 acres · State Responsibility Area 34%
  2. High 25 acres · State Responsibility Area <1%
  3. Not mapped by CAL FIRE 27,838 acres · Mostly federal land 65%

42,538 acres of land in all, 14,700 of it in the State Responsibility Area. 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. 1992 Ruby Fire Cause: Smoking 3,871 acres
  2. 1990 Cottonwood Fire Of 2,449 acres in all · Cause: Miscellaneous 2,161 acres
  3. 1946 Unnamed fire Of 4,149 acres in all 961 acres
  4. 1949 Unnamed fire 827 acres
  5. 1987 River Ii Fire Cause: Lightning 695 acres
  6. 1950 Casa Madera Fire 683 acres
  7. 1977 Sonnet Fire Of 632 acres in all · Cause: Campfire 580 acres
  8. 1934 Unnamed fire Of 838 acres in all 523 acres
  9. 1957 Mustang Gulch Fire Of 674 acres in all · Cause: Arson 500 acres
  10. 1933 Unnamed fire 294 acres

And 29 smaller fires. In all, 11,188 acres of ZIP code 95383 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 95383

Neighboring ZIP codes

  1. 95383 34% Very High · this area
  2. 95310 30% Very High
  3. 95335 26% Very High
  4. 95346 77% Very High
  5. 95370 54% Very High
  6. 95372 34% Very High
  7. 95379 38% Very High