California Carries the Most At-Risk Housing Stock by a Wide Margin
1,279,214 California housing units were classified at risk for extreme wildfires as of 2023 data, according to the Insurance Information Institute, versus 332,716 in Colorado and 233,434 in Texas, the next two leading western states. That is nearly four times Colorado’s count and more than five times Texas’s, concentrated in a state that already carries the country’s largest population and housing stock, which raises both the scale of potential loss and the number of homeowners who will eventually need a wildfire-resistant roof.
The financial scale behind that risk is not hypothetical. The 2018 Camp Fire caused $10 billion in insured losses at the time it occurred, equal to $12,524 million in 2024 dollars, still the reference-point loss event California insurers underwrite against when pricing or declining wildfire-zone coverage. Separately, humans cause approximately 85% of all US wildfires annually, and more than 7.5 million acres of wildland burned in 2022 alone.
Insurers Are Already Pulling Back in the State With the Most Exposure
California’s homeowners insurance non-renewal rate reached 3.18% of policies, the second-highest in the nation, roughly 3.9 times its own 2018 rate of 0.82%. That figure is not a coincidence sitting next to the housing-stock and loss-history numbers above; it tracks closely with them. An insurer that has already paid out on an event the size of the Camp Fire, in a state carrying nearly four times the next-closest western state’s at-risk housing count, has an obvious incentive to tighten underwriting on the properties most exposed to a repeat.
For a homeowner in a high-risk zone, that tightening often shows up as a roof-specific requirement: a Class A fire rating, a defensible-space inspection, or in the more severe cases, a non-renewal notice tied directly to the roof’s current material and condition.
The Numbers
1,279,214 California housing units were classified at risk for extreme wildfires as of 2023 data, versus 332,716 in Colorado and 233,434 in Texas.
The 2018 Camp Fire caused $10 billion in insured losses at the time, equal to $12,524 million in 2024 dollars.
Humans cause approximately 85% of all US wildfires annually, and more than 7.5 million acres of wildland burned in 2022.
Insurance Information Institute, citing National Park Service and NCEI data
California’s homeowners insurance non-renewal rate reached 3.18% of policies, roughly 3.9 times its own 2018 rate of 0.82%.
Sources
The external data in this article draws on the sources below. Figures described in the text as estimates or industry triangulations are directional and are not attributed to a single dataset.
- Insurance Information Institute, Facts and Statistics: Wildfires
- Weiss Ratings, homeowners dropped by insurers at highest rate in nation