How much flood risk does Berkeley County actually carry?
Berkeley County lands at the 79.8th 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 2.5 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.
Berkeley County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Berkeley County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 9.2% of them do — 84 active policies against 913 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Berkeley County, not just the ones FEMA mandates, 0.3% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Berkeley County against the rest of the country
Berkeley County sits at rank 664 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 488 of 3144 by population (1 is biggest). Berkeley County, West Virginia covers 321.131 square miles and counts roughly 136,287 residents.
Your street may differ from Berkeley County's average
FEMA counts 46,176 residential structures in Berkeley County overall, 150 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 Berkeley 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.