Simi Valley, CA
Simi Valley, CA's wildfire risk, in USFS's own numbers
USFS scores Simi Valley at the 96th national percentile for wildfire risk to structures (in USFS's highest wildfire-risk band nationally), a figure built from 37,813 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 Simi Valley at the 94th percentile, close to its 96th-percentile risk score.
What "at risk" means for the buildings here
81.3% of Simi Valley's 37,813 buildings fall in USFS's Indirect exposure zone — ember cast rather than direct flame — against 6.6% Direct and 12.1% Minimal. Vent screens and roofing material matter more here than lot clearing alone. At 37,813 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
Simi Valley against the rest of the country
Simi Valley's 96th national percentile looks worse in isolation than its 77th ranking inside California does — this place is on the milder end for its own state, by 19 points. Among the 31,521 US communities USFS scores, Simi Valley ranks 1,251 for wildfire risk (1 is highest) and 269 by building count (1 is largest). Within California alone, it ranks 373 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
What this risk score means for insurance
Because Simi Valley 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.
Lowering exposure, not just insuring around it
Simi Valley's 81.3% Indirect-exposure share points at embers, not flame contact, as the main pathway — ember-resistant vents and non-combustible roofing rank ahead of defensible space here. Detail in the home-hardening guide.
More on how this number was built
Simi Valley's 96th-percentile score and its burn-probability figure both come from the same USFS workbook, documented in the methodology guide. For more on what indirect exposure implies beyond Simi Valley, see the exposure-zones guide.