Williams Canyon, CA
Williams Canyon wildfire risk explained
Williams Canyon sits at the 99th percentile nationally for wildfire risk to structures — in USFS's highest wildfire-risk band nationally — per USFS's Wildfire Risk to Communities model, built from its 88 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Williams Canyon's burn probability — fire likelihood with no building count factored in — sits at the 100th percentile nationally.
What "at risk" means for the buildings here
Direct exposure dominates in Williams Canyon: 100% of its 88 buildings, versus 0% Indirect and 0% Minimal. Clearing space around a structure changes the outcome here more than any single building-material swap.
Where Williams Canyon ranks
There's little gap between Williams Canyon's 99th national percentile and its 93rd percentile inside California, which means the state comparison mostly confirms what the national score already shows. Among the 31,521 US communities USFS scores, Williams Canyon ranks 194 for wildfire risk (1 is highest) and 29,563 by building count (1 is largest). Within California alone, it ranks 115 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
Shopping for coverage in Williams Canyon
Williams Canyon sits in California, one of two states that legally require a wildfire-risk disclosure at sale. California's FAIR Plan, the state's insurer of last resort, ended 2025 with 668,609 residential policies after adding 21,859 in Q4 alone — the kind of market shift a 99th-percentile score like Williams Canyon's can end up mattering for. More on the disclosure law.
What would actually reduce this score
With 100% of Williams Canyon in Direct exposure, defensible-space clearing and ember-resistant construction (vents, Class-A roofing) address the exposure this page's own numbers describe, not a generic checklist. See the home-hardening guide.
Where Williams Canyon's figures come from
The methodology guide shows exactly how USFS turned 88 counted buildings into the percentiles shown above for Williams Canyon. The exposure-zones guide covers what Williams Canyon's dominant direct exposure actually means, with real examples from across the dataset.