ZIP code 91752

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 72 acres · Local Responsibility Area 1%
  2. High 56 acres · Local Responsibility Area 1%
  3. Moderate 649 acres · Local Responsibility Area 7%
  4. Non-wildland 9,006 acres · Local Responsibility Area 92%
  5. Not mapped by CAL FIRE 3 acres · Mostly federal land <1%

  9,786 acres of land in all, 9,783 of it in the Local 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. 1996 Union Fire 269 acres in total · Cause: Miscellaneous 265 acres here
  2. 1979 Unnamed fire 207 acres here
  3. 2007 River Fire 158 acres in total 128 acres here
  4. 1989 River Fire 962 acres in total 57 acres here

  The most recent was the 2007 River Fire, which burned 128 acres here. In all, 606 acres of ZIP code 91752 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