Angostura, SD
How exposed is Angostura to wildfire?
Angostura sits at the 90th percentile nationally for wildfire risk to structures — in USFS's highest wildfire-risk band nationally — per USFS's Wildfire Risk to Communities model, built from its 487 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, Angostura's burn probability — fire likelihood with no building count factored in — sits at the 91st percentile nationally.
Angostura's building exposure, zone by zone
487 buildings are counted in Angostura, and 94.5% of them sit in USFS's Direct exposure zone — flame contact, not just ember cast, is the live possibility for most of them, against 3.5% rated Minimal.
Where Angostura ranks
Angostura scores 90th nationally and 94th within South Dakota — close enough that its state context doesn't change the picture the national number already gives. Among the 31,521 US communities USFS scores, Angostura ranks 3,157 for wildfire risk (1 is highest) and 17,590 by building count (1 is largest). Within South Dakota alone, it ranks 26 of 439 places by risk. See the full county-by-county picture for South Dakota on its state page.
What this risk score means for insurance
Angostura's 90th-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.
Hardening a home in Angostura
Because Direct exposure dominates in Angostura (94.5%), the highest-leverage fix is defensible space, not roofing or vents alone — covered in the home-hardening guide.
More on how this number was built
Every one of the two percentiles behind Angostura's 3,157-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what direct exposure implies beyond Angostura, see the exposure-zones guide.