Derry, PA
Derry, PA's wildfire risk, in USFS's own numbers
USFS scores Derry at the 41st national percentile for wildfire risk to structures (modestly above the national average for wildfire risk), a figure built from 1,336 real buildings rather than raw vegetation cover. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Derry's burn probability — fire likelihood with no building count factored in — sits at the 40th percentile nationally.
Where Derry's buildings actually sit
92% of Derry's 1,336 buildings fall in USFS's Indirect exposure zone — ember cast rather than direct flame — against 8% Direct and 0% Minimal. Vent screens and roofing material matter more here than lot clearing alone.
Where Derry ranks
Derry's 65th-percentile standing inside Pennsylvania outpaces its 41st national percentile — this is a hotter spot than most of its own state, even though the state as a whole runs cooler nationally. Among the 31,521 US communities USFS scores, Derry ranks 18,481 for wildfire risk (1 is highest) and 9,904 by building count (1 is largest). Within Pennsylvania alone, it ranks 690 of 1,991 places by risk. See the full county-by-county picture for Pennsylvania on its state page.
Shopping for coverage in Derry
Derry's elevated rating (41st percentile nationally) sits outside the range where wildfire risk alone reshapes an insurance market — still, a homeowner here loses nothing by comparing rates.
Hardening a home in Derry
Derry's 92% Indirect-exposure share points at embers, not flame contact, as the main pathway — ember-resistant vents and non-combustible roofing rank ahead of defensible space here. Detail in the home-hardening guide.
More on how this number was built
Every one of the two percentiles behind Derry's 18,481-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what indirect exposure implies beyond Derry, see the exposure-zones guide.