Fairfield, CA
Fairfield wildfire risk explained
USFS's Wildfire Risk to Communities model puts Fairfield at the 91st national percentile for risk to structures, in USFS's highest wildfire-risk band nationally — a score built from 35,514 actual buildings. (Source: USFS's Wildfire Risk to Communities methodology.)
Fire likelihood alone (USFS's burn-probability figure) ranks Fairfield at the 92nd national percentile — 1 points above its risk-to-structures score, a gap driven by how much is actually built there.
Fairfield's building exposure, zone by zone
54.4% of Fairfield's 35,514 buildings fall in USFS's Indirect exposure zone — ember cast rather than direct flame — against 6.1% Direct and 39.5% Minimal. Vent screens and roofing material matter more here than lot clearing alone. At 35,514 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
Where Fairfield ranks
Fairfield's 91st national percentile looks worse in isolation than its 64th ranking inside California does — this place is on the milder end for its own state, by 27 points. Among the 31,521 US communities USFS scores, Fairfield ranks 2,763 for wildfire risk (1 is highest) and 300 by building count (1 is largest). Within California alone, it ranks 561 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
Shopping for coverage in Fairfield
Because Fairfield 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.
What would actually reduce this score
Because 54.4% of Fairfield'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.
More on how this number was built
Every one of the two percentiles behind Fairfield's 2,763-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what indirect exposure implies beyond Fairfield, see the exposure-zones guide.