Alhambra Valley, CA
Alhambra Valley, CA's wildfire risk, in USFS's own numbers
Alhambra Valley sits at the 95th 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 491 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
Fire likelihood alone (USFS's burn-probability figure) ranks Alhambra Valley at the 96th national percentile — 1 points above its risk-to-structures score, a gap driven by how much is actually built there.
What "at risk" means for the buildings here
88.2% of Alhambra Valley's 491 buildings sit in USFS's Direct exposure zone, roughly 433 structures close enough to burnable vegetation for flame contact, not just embers — 11.8% fall in the Indirect, ember-only zone and 0% are Minimal.
Alhambra Valley against the rest of the country
Alhambra Valley's 95th national percentile looks worse in isolation than its 73rd ranking inside California does — this place is on the milder end for its own state, by 22 points. Among the 31,521 US communities USFS scores, Alhambra Valley ranks 1,692 for wildfire risk (1 is highest) and 17,507 by building count (1 is largest). Within California alone, it ranks 426 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 Alhambra 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.
Hardening a home in Alhambra Valley
Alhambra Valley's 88.2% Direct-exposure share means lot clearing around the structure typically outweighs any single material upgrade here. The home-hardening guide ranks the options for a place shaped like this.
Where Alhambra Valley's figures come from
The methodology guide shows exactly how USFS turned 491 counted buildings into the percentiles shown above for Alhambra Valley. The exposure-zones guide covers what Alhambra Valley's dominant direct exposure actually means, with real examples from across the dataset.