Is Greene County, MS in a flood zone?
FEMA's National Risk Index puts Greene County's flood hazard at the 38.3th percentile nationally — below the national norm for flood hazard — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 1 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Who actually carries the flood insurance FEMA requires
Out of 1,003 homes FEMA counts inside Greene County's mapped flood zone, 31 carry the flood policy federal law requires there — 3.1% compliance, short of full coverage. Across all residential structures in Greene County, not just the ones FEMA mandates, 0.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Greene County compares nationally
Greene County sits at rank 2003 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2178 of 3144 by population (1 is biggest). Greene County, Mississippi covers 712.738 square miles and counts roughly 13,675 residents.
What to do next if you own or are buying in Greene County
32 of Greene County's 7,767 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 Greene 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.