Kusilvak Census Area, AK: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Kusilvak Census Area scores at the 0th percentile for flood hazard, rated "No Rating" — not rated by FEMA’s risk index. The hazard here is split between inland river flooding (about once every Infinity years) and coastal storm surge (about once every Infinity years). County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Kusilvak Census Area
FEMA hasn't published a residential structure count for Kusilvak 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, 0.6% of all residential structures in Kusilvak Census Area carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Kusilvak Census Area ranks
Among the 3144 US counties FEMA scores for flood hazard, Kusilvak Census Area ranks 3141 — 1 being the highest hazard nationally — and 2579 by population among all 3144 counties covered here, where 1 is the largest. Kusilvak Census Area, Alaska is home to about 7,946 people across 17,151.47 square miles of land.
Your street may differ from Kusilvak Census Area's average
11 of Kusilvak Census Area's 1,790 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Kusilvak Census Area's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Kusilvak 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.