Mammoth, WY
Mammoth wildfire risk explained
USFS scores Mammoth at the 96th national percentile for wildfire risk to structures (in USFS's highest wildfire-risk band nationally), a figure built from 198 real buildings rather than raw vegetation cover. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Mammoth's burn probability — fire likelihood with no building count factored in — sits at the 95th percentile nationally.
Where Mammoth's buildings actually sit
Of Mammoth's 198 counted buildings, 63.1% carry Direct exposure and only 0% carry Minimal — a lopsided split that puts defensible-space clearing ahead of vents or roofing as the intervention worth doing first.
Where Mammoth ranks
There's little gap between Mammoth's 96th national percentile and its 99th percentile inside Wyoming, which means the state comparison mostly confirms what the national score already shows. Among the 31,521 US communities USFS scores, Mammoth ranks 1,277 for wildfire risk (1 is highest) and 24,946 by building count (1 is largest). Within Wyoming alone, it ranks 3 of 192 places by risk. See the full county-by-county picture for Wyoming on its state page.
Shopping for coverage in Mammoth
At the 96th percentile nationally, Mammoth carries the very high rating that has pushed some carriers to limit new business in similarly-scored places elsewhere in the country. Worth comparing quotes rather than assuming last year's renewal terms still apply.
Hardening a home in Mammoth
Because Direct exposure dominates in Mammoth (63.1%), the highest-leverage fix is defensible space, not roofing or vents alone — covered in the home-hardening guide.
Where Mammoth's figures come from
The methodology guide shows exactly how USFS turned 198 counted buildings into the percentiles shown above for Mammoth. The exposure-zones guide covers what Mammoth's dominant direct exposure actually means, with real examples from across the dataset.