Marion County, WV flood risk explained
Flood hazard in Marion County sits at the 85.7th national percentile, a middling flood hazard by national standards; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.4 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.
Mandatory flood insurance compliance in Marion County
10.2% of the homes FEMA requires to carry flood insurance in Marion County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 115 policies against 1,132 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Looking beyond the mandated zone, 0.6% of all residential structures in Marion County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Marion County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Marion County ranks 475 — 1 being the highest hazard nationally — and 939 by population among all 3144 counties covered here, where 1 is the largest. About 55,649 people live in Marion County, West Virginia, spread over 308.785 square miles.
Your street may differ from Marion County's average
FEMA counts 25,509 residential structures in Marion County overall, 140 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Marion County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.