ZIP code 95637

Yolo County, including Guinda

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Report created October 27, 2026 at www.firezones.info/zip/95637

  • Fire hazard severity zones

    Share of the land in each CAL FIRE hazard class

    48% 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

    87% has burned

    Most recently the 2020 Hennessey Fire, which burned 22,387 acres here, one of 21 fires on record.

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  • Power line fire risk

    Share of the land in the High Fire-Threat District

    86% 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 12,958 acres · State Responsibility Area 48%
  2. High 455 acres · State Responsibility Area 2%
  3. Moderate 2,183 acres · State Responsibility Area 8%
  4. Not mapped by CAL FIRE 11,461 acres · Mostly federal land 42%

27,058 acres of land in all, 15,597 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. 2020 Hennessey Fire Of 305,352 acres in all · Cause: Lightning 22,387 acres
  2. 1972 Pocket Gulch Fire Of 10,431 acres in all 9,859 acres
  3. 2004 Rumsey Fire Of 38,763 acres in all · Cause: Arson 5,119 acres
  4. 2018 County Fire Of 89,831 acres in all 5,029 acres
  5. 1999 Sixteen Fire Of 37,893 acres in all · Cause: Arson 3,332 acres
  6. 1999 Rumsey Fire Of 2,995 acres in all 2,635 acres
  7. 2002 Sixteen Fire Of 1,514 acres in all · Cause: Arson 1,385 acres
  8. 2015 Jerusalem Fire Of 25,118 acres in all 1,309 acres
  9. 1951 R.haswell Fire Of 1,196 acres in all 1,161 acres
  10. 2019 Sand Fire Of 2,422 acres in all · Cause: Lightning 722 acres

And 11 smaller fires. In all, 23,644 acres of ZIP code 95637 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 95637

Neighboring ZIP codes

  1. 95637 48% Very High · this area
  2. 94558 56% Very High
  3. 95457 67% Very High
  4. 95606 67% Very High
  5. 95607 71% Very High
  6. 95679 73% Very High