How much flood risk does Grenada County actually carry?
Grenada County lands at the 58.7th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below 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 2 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.
Who actually carries the flood insurance FEMA requires
16.5% of the homes FEMA requires to carry flood insurance in Grenada County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 146 policies against 885 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Grenada County, not just the ones FEMA mandates, 1.7% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Grenada County ranks
Grenada County sits at rank 1359 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1773 of 3144 by population (1 is biggest). About 20,931 people live in Grenada County, Mississippi, spread over 422.113 square miles.
Your street may differ from Grenada County's average
FEMA counts 9,229 residential structures in Grenada County overall, 155 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 Grenada 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.