Skamania County, WA: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Skamania County scores at the 49.8th percentile for flood hazard, rated "Relatively Low" — below the national norm for flood hazard. 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 100 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Skamania County's flood-insurance compliance gap
FEMA hasn't published a residential structure count for Skamania County'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, 0.4% of all residential structures in Skamania County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Skamania County ranks
Among the 3144 US counties FEMA scores for flood hazard, Skamania County ranks 1640 — 1 being the highest hazard nationally — and 2242 by population among all 3144 counties covered here, where 1 is the largest. About 12,660 people live in Skamania County, Washington, spread over 1,658.268 square miles.
Checking a specific address in Skamania County
FEMA counts 5,712 residential structures in Skamania County overall, 25 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Skamania County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Skamania County'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.