Fire History
San Diego County has a severe wildfire history driven by Santa Ana wind events and drought conditions. The 2003 Cedar Fire (273,246 acres) remains one of the largest in California history, killing 15 people and destroying 2,820 homes. The 2007 Witch Creek Fire burned 197,990 acres. More recently, the 2020 Valley Fire destroyed over 30 homes in Alpine. Eastern and northern unincorporated areas carry the highest risk.
Local Compliance Notes
San Diego County fire jurisdiction is divided between CAL FIRE (unincorporated SRA areas) and multiple city fire departments. Communities in Alpine, Ramona, Julian, Fallbrook, Valley Center, Descanso, and Pine Valley face the highest Zone Zero compliance obligations. The county has adopted updated FHSZ maps and local AHJ timelines are expected to be set within the standard 5-year window.
Neighborhoods in Zone Zero
High-FHSZ communities in San Diego County include Alpine, Ramona, Julian, Fallbrook, Valley Center, Descanso, Pine Valley, Jamul, Potrero, and areas of El Cajon, Lakeside, Santee, and Poway. Coastal communities generally have lower designations. Check the CAL FIRE FHSZ viewer for your specific parcel.
Local FAQs
Which parts of San Diego County are most affected by Zone Zero? Eastern and northern unincorporated areas are primarily affected, including Alpine, Ramona, Julian, Fallbrook, and Valley Center. Coastal communities generally have lower FHSZ designation but should check the CAL FIRE viewer. Contact San Diego County Fire for jurisdiction-specific guidance on unincorporated parcels.