ZIP-level traffic congestion and accident rates. Dense ZIPs along the I-5, I-805, I-15, and I-8 corridors often carry higher base rates than outlying areas.
Vehicle theft rates by ZIP. San Diego's proximity to the border puts several ZIPs among California's higher-theft areas, which feeds into comprehensive premiums.
Vehicle make and model. SUVs, trucks, and frequently-stolen models often carry higher comprehensive premiums.
Comprehensive premiums in fire-exposure ZIPs. Vehicles garaged in eastern San Diego County backcountry and foothill areas can see higher comprehensive rates.
Annual mileage. California is a mileage-based rating state, so a long commute matters.
At-fault accidents and tickets in the last 3 years (California limits how far back insurers can look).
Coverage gaps. A recent lapse adds risk to most carriers.
Note: California prohibits credit-based insurance scoring for personal auto, so credit history won't push your rate up here.
For neighborhood-level color, see the city pages linked below.