Santa Rosa, CA

The 2017 Tubbs Fire destroyed more than 5,600 structures and killed 22 people in Sonoma County—the most damaging California wildfire at the time of its occurrence. Santa Rosa's wildfire score of 92 sits at the 97th national percentile. That score is not an abstraction: Fountaingrove, the hillside neighborhood that sustained some of the heaviest Tubbs Fire losses, is actively rebuilding—and doing so within the same WUI setting that produced the original destruction. The 2020 Glass Fire added additional smoke-season evidence, reinforcing what insurers had already begun pricing: repeated fire proximity changes underwriting appetite durably. Our read: Fountaingrove-style hillside locations face the strongest underwriting pressure in this market. Annual premiums range from $1,600 to $5,000, but hillside WUI properties can push well above that upper bound. Defensible space compliance and roof material—Class A roofing, ignition-resistant construction—are practical pricing variables, not checklist items. Properties that meet defensible space standards price and underwrite differently from those that do not. Central Santa Rosa and West End neighborhoods face smoke and episodic flood exposure more than direct fireline risk—a meaningfully different risk stack that still requires review. The 72nd national percentile moderate heat score adds operational pressure: long summer days with poor air quality from regional fires reduce livability in ways that aggregate weather data does not capture as insurance events. Buyers attracted to the Sonoma County lifestyle need a precise WUI map rather than a city-level risk summary. The distance from open space—measured in blocks, not miles—is the single variable that determines whether a Santa Rosa property carries a standard policy or a constrained one.

— Open Data Collective