St. Helena

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 200 acres · Local Responsibility Area 6%
  2. High 781 acres · 2 state, 778 local 24%
  3. Moderate 539 acres · 2 state, 537 local 17%
  4. Non-wildland 1,736 acres · Local Responsibility Area 53%

  3,256 acres of land in all, 5 in the State Responsibility Area and 3,251 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

  Fires CAL FIRE has recorded here

  Map
  1. 2020 Glass Fire 67,484 acres in total 454 acres here
  2. 1983 Howell Mtn. Fire 2,354 acres in total 13 acres here
  3. 2003 Silverado Fire 69 acres in total · Cause: Power lines 9 acres here

  The most recent was the 2020 Glass Fire, which burned 454 acres here. In all, 454 acres of St. Helena 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