Londonderry, NH
Londonderry, NH's wildfire risk, in USFS's own numbers
Londonderry sits at the 30th 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 4,054 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
Fire likelihood alone (USFS's burn-probability figure) ranks Londonderry at the 25th national percentile — 5 points below its risk-to-structures score, a gap driven by how much is actually built there.
Londonderry's building exposure, zone by zone
51.3% of Londonderry's 4,054 buildings sit in USFS's Direct exposure zone, roughly 2,078 structures close enough to burnable vegetation for flame contact, not just embers — 37.3% fall in the Indirect, ember-only zone and 11.5% are Minimal.
Where Londonderry ranks
Within New Hampshire, Londonderry ranks higher (95th percentile) than it does nationally (30th) — one of the more fire-exposed places in a state that, overall, scores lower than that. Among the 31,521 US communities USFS scores, Londonderry ranks 22,030 for wildfire risk (1 is highest) and 4,186 by building count (1 is largest). Within New Hampshire alone, it ranks 6 of 100 places by risk. See the full county-by-county picture for New Hampshire on its state page.
What this risk score means for insurance
At the 30th national percentile, Londonderry rates moderate for wildfire risk — well short of the threshold where insurers have been withdrawing coverage, though comparing a quote costs nothing either way.
Hardening a home in Londonderry
With 51.3% of Londonderry in Direct exposure, defensible-space clearing and ember-resistant construction (vents, Class-A roofing) address the exposure this page's own numbers describe, not a generic checklist. See the home-hardening guide.
More on how this number was built
Every one of the two percentiles behind Londonderry's 22,030-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what direct exposure implies beyond Londonderry, see the exposure-zones guide.