Petersburg, IL
How exposed is Petersburg to wildfire?
Petersburg sits at the 24th percentile nationally for wildfire risk to structures — close to the middle of USFS's national wildfire-risk range — per USFS's Wildfire Risk to Communities model, built from its 1,336 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Petersburg's burn probability — fire likelihood with no building count factored in — sits at the 24th percentile nationally.
Where Petersburg's buildings actually sit
1,336 buildings are counted in Petersburg, and 66.5% of them are Indirect exposure — ember-driven risk rather than the 8% in Direct exposure or the 25.5% rated Minimal.
How Petersburg compares
Within Illinois, Petersburg ranks higher (68th percentile) than it does nationally (24th) — one of the more fire-exposed places in a state that, overall, scores lower than that. Among the 31,521 US communities USFS scores, Petersburg ranks 24,072 for wildfire risk (1 is highest) and 9,901 by building count (1 is largest). Within Illinois alone, it ranks 461 of 1,445 places by risk. See the full county-by-county picture for Illinois on its state page.
What this risk score means for insurance
Petersburg's moderate rating (24th percentile nationally) sits outside the range where wildfire risk alone reshapes an insurance market — still, a homeowner here loses nothing by comparing rates.
What would actually reduce this score
Because 66.5% of Petersburg's buildings sit in the Indirect zone, sealing the ember pathway (vents, roofing, gutters) is the intervention this page's data actually supports — see the home-hardening guide.
More on how this number was built
Petersburg's 24th-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 Petersburg, see the exposure-zones guide.