Norco

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 2,207 acres · Local Responsibility Area 24%
  2. High 825 acres · Local Responsibility Area 9%
  3. Moderate 1,187 acres · Local Responsibility Area 13%
  4. Non-wildland 4,435 acres · Local Responsibility Area 49%
  5. Not mapped by CAL FIRE 356 acres · Mostly federal land 4%

  9,009 acres of land in all, 8,654 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. 1959 Hillside Fire 1,061 acres in total 217 acres here
  2. 1985 River Fire 452 acres in total 172 acres here
  3. 1979 Unnamed fire 209 acres in total 122 acres here
  4. 2015 Highway Fire 1,049 acres in total · Cause: Campfire 1 acre here
  5. 1985 River Fire 123 acres in total 1 acre here

  The most recent was the 2015 Highway Fire, which burned 1 acre here. In all, 514 acres of Norco 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