ZIP code 92391

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 1,033 acres · State Responsibility Area 82%
  2. Not mapped by CAL FIRE 234 acres · Mostly federal land 18%

  1,266 acres of land in all, 1,033 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

  Fires CAL FIRE has recorded here

  Map
  1. 1911 Unnamed fire 17,062 acres in total 799 acres here
  2. 1938 Unnamed fire 12,493 acres in total 211 acres here
  3. 2003 Old Fire 91,428 acres in total · Cause: Arson 129 acres here
  4. 2007 Grass Valley Fire 1,242 acres in total · Cause: Miscellaneous 30 acres here
  5. 1953 Arrowhead Springs Fire 3,105 acres in total 4 acres here
  6. 1953 Unnamed fire 491 acres in total 4 acres here

  The most recent was the 2007 Grass Valley Fire, which burned 30 acres here. In all, 829 acres of ZIP code 92391 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