How much flood risk does Dillingham Census Area actually carry?
Dillingham Census Area lands at the 3.1th percentile of FEMA's National Risk Index for flooding, "No Rating" territory — not rated by FEMA’s risk index — with the hazard split between inland river flooding (about once every 100 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 Dillingham Census Area
Dillingham Census Area is one of the counties where FEMA's own denominator for mandated flood-zone structures is missing, so no compliance rate is shown rather than a guessed one — the data quality guide covers how common this is. Across all residential structures in Dillingham Census Area, not just the ones FEMA mandates, 0% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Dillingham Census Area ranks
Dillingham Census Area sits at rank 3052 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2844 of 3144 by population (1 is biggest). About 4,642 people live in Dillingham Census Area, Alaska, spread over 18,353.188 square miles.
What to do next if you own or are buying in Dillingham Census Area
0 of Dillingham Census Area's 1,804 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Dillingham Census Area's numbers. See the data quality guide for why Dillingham Census Area, like hundreds of other counties, doesn't get a clean compliance percentage.