How much flood risk does Blaine County actually carry?
Blaine County lands at the 70.5th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Blaine County's flood-insurance compliance gap
27.2% of the homes FEMA requires to carry flood insurance in Blaine County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 181 policies against 666 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Blaine County, not just the ones FEMA mandates, 2.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Blaine County compares nationally
Blaine County sits at rank 968 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1614 of 3144 by population (1 is biggest). Blaine County, Idaho is home to about 25,261 people across 2,637.738 square miles of land.
Your street may differ from Blaine County's average
377 of Blaine County's 13,533 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 Blaine County's numbers. The guide to what the Special Flood Hazard Area actually means explains why the mandatory-insurance rule exists and who it applies to.