How much flood risk does Douglas County actually carry?
Douglas County lands at the 95.1th percentile of FEMA's National Risk Index for flooding, "Relatively High" territory — well above 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 1.8 times a year. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Douglas County's flood-insurance compliance gap
Out of 3,772 homes FEMA counts inside Douglas County's mapped flood zone, 659 carry the flood policy federal law requires there — 17.5% compliance, short of full coverage. Across all residential structures in Douglas County, not just the ones FEMA mandates, 0.5% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Douglas County against the rest of the country
Douglas County sits at rank 166 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 117 of 3144 by population (1 is biggest). Douglas County, Nebraska covers 326.54 square miles and counts roughly 601,158 residents.
Checking a specific address in Douglas County
FEMA counts 179,063 residential structures in Douglas County overall, 875 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Douglas 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.