Janesville, CA
Janesville, CA's wildfire risk, in USFS's own numbers
USFS's Wildfire Risk to Communities model puts Janesville at the 98th national percentile for risk to structures, in USFS's highest wildfire-risk band nationally — a score built from 2,082 actual buildings. (Source: USFS's Wildfire Risk to Communities methodology.)
Fire likelihood alone (USFS's burn-probability figure) ranks Janesville at the 98th national percentile — 0 points below its risk-to-structures score, a gap driven by how much is actually built there.
Janesville's building exposure, zone by zone
99.8% of Janesville's 2,082 buildings sit in USFS's Direct exposure zone, roughly 2,078 structures close enough to burnable vegetation for flame contact, not just embers — 0.2% fall in the Indirect, ember-only zone and 0% are Minimal.
How Janesville compares
There's little gap between Janesville's 98th national percentile and its 84th percentile inside California, which means the state comparison mostly confirms what the national score already shows. Among the 31,521 US communities USFS scores, Janesville ranks 625 for wildfire risk (1 is highest) and 7,244 by building count (1 is largest). Within California alone, it ranks 261 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
Janesville and the insurance market
Because Janesville 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
Because Direct exposure dominates in Janesville (99.8%), the highest-leverage fix is defensible space, not roofing or vents alone — covered in the home-hardening guide.
More on how this number was built
The methodology guide shows exactly how USFS turned 2,082 counted buildings into the percentiles shown above for Janesville. For more on what direct exposure implies beyond Janesville, see the exposure-zones guide.