Port Alsworth, AK
How exposed is Port Alsworth to wildfire?
Out of every US place USFS scores, Port Alsworth lands at the 81st percentile for wildfire risk to structures — in USFS's highest wildfire-risk band nationally — a figure built from its 131 buildings, not the land around them. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Port Alsworth's burn probability — fire likelihood with no building count factored in — sits at the 77th percentile nationally.
Port Alsworth's building exposure, zone by zone
Direct exposure dominates in Port Alsworth: 93.9% of its 131 buildings, versus 6.1% Indirect and 0% Minimal. Clearing space around a structure changes the outcome here more than any single building-material swap.
Where Port Alsworth ranks
Inside Alaska, Port Alsworth sits at just the 63rd percentile even though it scores 81st nationally — the state's overall wildfire exposure is high enough to make this a relatively quiet corner of it. Among the 31,521 US communities USFS scores, Port Alsworth ranks 6,041 for wildfire risk (1 is highest) and 27,649 by building count (1 is largest). Within Alaska alone, it ranks 119 of 322 places by risk. See the full county-by-county picture for Alaska on its state page.
What this risk score means for insurance
Port Alsworth's 81st-percentile, very high rating is the kind of score behind a broader national pattern: insurers pulling back from the highest wildfire-risk markets, non-renewing or declining new policies outright, most visibly in California. Shopping around, not assuming automatic renewal, tends to matter here.
What would actually reduce this score
With 93.9% of Port Alsworth 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
The methodology guide shows exactly how USFS turned 131 counted buildings into the percentiles shown above for Port Alsworth. For more on what direct exposure implies beyond Port Alsworth, see the exposure-zones guide.