Denali Borough, AK: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Denali Borough scores at the 1.5th percentile for flood hazard, rated "Very Low" — among the lowest flood hazard in the country. The hazard here is driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 200 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Denali Borough's mapped flood zone, so a reliable mandatory-compliance percentage can't be computed here — see the data quality guide for why this gap exists for roughly a quarter of US counties. Looking beyond the mandated zone, 0% of all residential structures in Denali Borough carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Denali Borough compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Denali Borough ranks 3102 — 1 being the highest hazard nationally — and 3073 by population among all 3144 counties covered here, where 1 is the largest. Denali Borough, Alaska covers 12,639.746 square miles and counts roughly 1,621 residents.
Checking a specific address in Denali Borough
FEMA counts 1,227 residential structures in Denali Borough overall, 0 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Denali Borough's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Denali Borough's compliance figure is one of the ones affected by FEMA's incomplete denominator data — the data quality guide explains what that means and how many counties it touches.