Aleutians West Census Area, AK flood risk explained
Flood hazard in Aleutians West Census Area sits at the 0th national percentile, not rated by FEMA’s risk index; split between inland river flooding (about once every Infinity years) and coastal storm surge (about once every Infinity years). That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Aleutians West Census Area'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 Aleutians West Census Area carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Aleutians West Census Area ranks
Among the 3144 US counties FEMA scores for flood hazard, Aleutians West Census Area ranks 3142 — 1 being the highest hazard nationally — and 2785 by population among all 3144 counties covered here, where 1 is the largest. Aleutians West Census Area, Alaska is home to about 5,424 people across 4,387.37 square miles of land.
Checking a specific address in Aleutians West Census Area
Across all of Aleutians West Census Area's 949 residential structures, 0 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Aleutians West Census Area's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Aleutians West Census Area'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.