ZIP code 95383

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

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Report created October 31, 2026 at www.firezones.org/zip/95383

Summary

  • Fire hazard severity zones

    Share of the land in each CAL FIRE 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 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 39 fires that burned here

    1. 1992 Ruby Fire Cause: Smoking 3,871 acres here
    2. 1990 Cottonwood Fire 2,449 acres in total · Cause: Miscellaneous 2,161 acres here
    3. 1946 Unnamed fire 4,149 acres in total 961 acres here
    4. 1949 Unnamed fire 827 acres here
    5. 1987 River Ii Fire Cause: Lightning 695 acres here
    6. 1950 Casa Madera Fire 683 acres here
    7. 1977 Sonnet Fire 632 acres in total · Cause: Campfire 580 acres here
    8. 1934 Unnamed fire 838 acres in total 523 acres here
    9. 1957 Mustang Gulch Fire 674 acres in total · Cause: Arson 500 acres here
    10. 1933 Unnamed fire 294 acres here

    And 29 smaller fires. The most recent was the 2020 Quarter Fire, which burned 12 acres here. 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

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

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