Here’s how many acres most of SoCal’s cities changed on Cal Fire’s risk map

Mapping fire threats

Cal Fire released new fire hazard severity maps for Southern California on Monday, March 24, the final piece in a 2025 statewide rollout. While Cal Fire mapped “very high” wildfire zones under local authority more than a decade ago, the new maps now include “high” and “moderate” zones as well.

The state law requiring the new mapping extends fire safety regulations that applied to just very high zones into high zones as well. These include defensible space requirements...