Is Jefferson Davis County, MS in a flood zone?
FEMA's National Risk Index puts Jefferson Davis County's flood hazard at the 23.8th percentile nationally — among the lowest flood hazard in the country — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1 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.
Jefferson Davis County's flood-insurance compliance gap
3.6% of the homes FEMA requires to carry flood insurance in Jefferson Davis County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 3 policies against 84 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Jefferson Davis County, not just the ones FEMA mandates, 0.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Jefferson Davis County compares nationally
Jefferson Davis County sits at rank 2437 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2340 of 3144 by population (1 is biggest). Jefferson Davis County, Mississippi covers 408.446 square miles and counts roughly 11,059 residents.
What to do next if you own or are buying in Jefferson Davis County
Across all of Jefferson Davis County's 5,392 residential structures, 5 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Jefferson Davis 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.