Irwin, PA
Irwin, PA's wildfire risk, in USFS's own numbers
Out of every US place USFS scores, Irwin lands at the 24th percentile for wildfire risk to structures — close to the middle of USFS's national wildfire-risk range — a figure built from its 1,479 buildings, not the land around them. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Irwin at the 25th percentile, close to its 24th-percentile risk score.
Irwin's building exposure, zone by zone
Indirect exposure is dominant in Irwin (97.7% of 1,479 buildings): far enough from burnable vegetation to avoid flame contact, close enough for wind-blown embers. Only 2.3% sit in the Direct zone.
Where Irwin ranks
Irwin scores 24th nationally and 27th within Pennsylvania — close enough that its state context doesn't change the picture the national number already gives. Among the 31,521 US communities USFS scores, Irwin ranks 23,994 for wildfire risk (1 is highest) and 9,262 by building count (1 is largest). Within Pennsylvania alone, it ranks 1,444 of 1,991 places by risk. See the full county-by-county picture for Pennsylvania on its state page.
Irwin and the insurance market
Irwin's moderate wildfire rating (24th percentile) isn't the kind of score driving the carrier pullback making news in the highest-risk Western markets — but a standard homeowners quote is still worth comparing on its own terms.
Hardening a home in Irwin
With ember exposure the dominant pattern in Irwin (97.7% Indirect), vent screens and roofing material tend to matter more than lot clearing alone. The home-hardening guide covers both.
More on how this number was built
The methodology guide shows exactly how USFS turned 1,479 counted buildings into the percentiles shown above for Irwin. For more on what indirect exposure implies beyond Irwin, see the exposure-zones guide.