Douglas County, WA Flood Zone & Flood Risk Data
Douglas County, WA: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Douglas County scores at the 82.1th percentile for flood hazard, rated "Relatively Moderate", a middling flood hazard by national standards. 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 3 years. This describes the county, not any one street, FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Douglas County
FEMA hasn't published a residential structure count for Douglas 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, 0.2% of all residential structures in Douglas County carry flood coverage voluntarily or otherwise, relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Douglas County ranks
Among the 3144 US counties FEMA scores for flood hazard, Douglas County ranks 590, 1 being the highest hazard nationally, and 1077 by population among all 3144 counties covered here, where 1 is the largest. Douglas County, Washington is home to about 45,795 people across 1,819.244 square miles of land.
Checking a specific address in Douglas County
29 of Douglas County's 17,346 residential structures carry flood coverage of some kind, per FEMA's latest count, useful context, not a substitute for checking one parcel.
Where Douglas County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Douglas 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.