How much flood risk does Greenbrier County actually carry?
Greenbrier County lands at the 84.6th 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 1.8 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
16.4% of the homes FEMA requires to carry flood insurance in Greenbrier County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 188 policies against 1,150 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Greenbrier County, not just the ones FEMA mandates, 1.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Greenbrier County compares nationally
Greenbrier County sits at rank 507 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1395 of 3144 by population (1 is biggest). Greenbrier County, West Virginia covers 1,019.819 square miles and counts roughly 31,851 residents.
Checking a specific address in Greenbrier County
256 of Greenbrier County's 18,822 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 Greenbrier 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.