How much flood risk does Okanogan County actually carry?
Okanogan County lands at the 89.1th percentile of FEMA's National Risk Index for flooding, "Relatively Moderate" territory — a middling flood hazard by national standards — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Okanogan County's flood-insurance compliance gap
Okanogan County 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 Okanogan County, not just the ones FEMA mandates, 0.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Okanogan County compares nationally
Okanogan County sits at rank 361 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1095 of 3144 by population (1 is biggest). About 44,942 people live in Okanogan County, Washington, spread over 5,266.193 square miles.
Your street may differ from Okanogan County's average
183 of Okanogan County's 24,104 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 Okanogan County's numbers. See the data quality guide for why Okanogan County, like hundreds of other counties, doesn't get a clean compliance percentage.