Discovery Bay, CA
Discovery Bay wildfire risk explained
USFS scores Discovery Bay at the 73rd national percentile for wildfire risk to structures (well above the national norm for wildfire risk), a figure built from 6,371 real buildings rather than raw vegetation cover. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Discovery Bay at the 74th percentile, close to its 73rd-percentile risk score.
Where Discovery Bay's buildings actually sit
USFS puts 49.1% of Discovery Bay's 6,371 buildings in the Indirect exposure zone, versus 4.1% Direct and 46.8% Minimal — a place where the fire doesn't need to reach the structure directly for embers to. At 6,371 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
How Discovery Bay compares
Discovery Bay's 73rd national percentile looks worse in isolation than its 31st ranking inside California does — this place is on the milder end for its own state, by 42 points. Among the 31,521 US communities USFS scores, Discovery Bay ranks 8,562 for wildfire risk (1 is highest) and 2,718 by building count (1 is largest). Within California alone, it ranks 1,089 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
Shopping for coverage in Discovery Bay
Because Discovery Bay is in California, a wildfire-hazard disclosure is legally required before a sale closes here — unusual nationally, since only these two states mandate it. The state's FAIR Plan alone carried 668,609 policies by the end of 2025. Full detail in the disclosure-law guide.
Hardening a home in Discovery Bay
Because 49.1% of Discovery Bay's buildings sit in the Indirect zone, sealing the ember pathway (vents, roofing, gutters) is the intervention this page's data actually supports — see the home-hardening guide.
Where Discovery Bay's figures come from
Every one of the two percentiles behind Discovery Bay's 8,562-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. The exposure-zones guide covers what Discovery Bay's dominant indirect exposure actually means, with real examples from across the dataset.