Riverdale, CA
How exposed is Riverdale to wildfire?
Out of every US place USFS scores, Riverdale lands at the 58th percentile for wildfire risk to structures — modestly above the national average for wildfire risk — a figure built from its 1,206 buildings, not the land around them. (Source: USFS's Wildfire Risk to Communities methodology.)
Fire likelihood alone (USFS's burn-probability figure) ranks Riverdale at the 57th national percentile — 1 points below its risk-to-structures score, a gap driven by how much is actually built there.
What "at risk" means for the buildings here
Riverdale rates 76.4% Minimal exposure against just 23.6% Direct and 0% Indirect — of 1,206 buildings counted, few sit close enough to burnable vegetation for USFS to flag them individually.
How Riverdale compares
Inside California, Riverdale sits at just the 16th percentile even though it scores 58th nationally — the state's overall wildfire exposure is high enough to make this a relatively quiet corner of it. Among the 31,521 US communities USFS scores, Riverdale ranks 13,231 for wildfire risk (1 is highest) and 10,614 by building count (1 is largest). Within California alone, it ranks 1,320 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
Shopping for coverage in Riverdale
Riverdale's 58th-percentile score lands in California, the only two states requiring a wildfire disclosure at sale. California's surplus-lines homeowners market passed 300,000 policies for the first time in 2025, driven by carriers pulling back from wildfire-exposed areas statewide. The disclosure-law guide covers what it requires.
Lowering exposure, not just insuring around it
With 76.4% of buildings rated Minimal exposure, Riverdale gets less benefit from structure hardening than a Direct- or Indirect-dominant place would — the home-hardening guide explains why the zone matters.
More on how this number was built
Every one of the two percentiles behind Riverdale's 13,231-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what minimal exposure implies beyond Riverdale, see the exposure-zones guide.