Warrenville, IL
How exposed is Warrenville to wildfire?
USFS's Wildfire Risk to Communities model puts Warrenville at the 30th national percentile for risk to structures, close to the middle of USFS's national wildfire-risk range — a score built from 4,335 actual buildings. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Warrenville at the 29th percentile, close to its 30th-percentile risk score.
Warrenville's building exposure, zone by zone
Most of Warrenville's buildings (77.4% of 4,335) fall outside USFS's Direct and Indirect zones entirely — that doesn't zero out the score above, it means the risk is regional, not structure-by-structure.
Where Warrenville ranks
Compare Warrenville's two percentiles: 80th within Illinois, only 30th nationally — a gap of 50 points that marks it as unusually exposed for its own state. Among the 31,521 US communities USFS scores, Warrenville ranks 22,054 for wildfire risk (1 is highest) and 3,954 by building count (1 is largest). Within Illinois alone, it ranks 294 of 1,445 places by risk. See the full county-by-county picture for Illinois on its state page.
Warrenville and the insurance market
At the 30th national percentile, Warrenville rates moderate for wildfire risk — well short of the threshold where insurers have been withdrawing coverage, though comparing a quote costs nothing either way.
What would actually reduce this score
Even with 77.4% of Warrenville outside USFS's Direct and Indirect zones, basic hardening — gutter maintenance, ember-resistant vents — is inexpensive relative to the regional burn-probability risk noted above. Details in the home-hardening guide.
Where Warrenville's figures come from
The methodology guide shows exactly how USFS turned 4,335 counted buildings into the percentiles shown above for Warrenville. The exposure-zones guide covers what Warrenville's dominant minimal exposure actually means, with real examples from across the dataset.