Is Greene County, GA in a flood zone?
FEMA's National Risk Index puts Greene County's flood hazard at the 54.4th 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 4 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Greene County's flood-insurance compliance gap
Out of 24 homes FEMA counts inside Greene County's mapped flood zone, 3 carry the flood policy federal law requires there — 12.5% compliance, short of full coverage. Across all residential structures in Greene 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.
Where Greene County ranks
Greene County sits at rank 1500 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1765 of 3144 by population (1 is biggest). Greene County, Georgia covers 387.517 square miles and counts roughly 21,091 residents.
What to do next if you own or are buying in Greene County
FEMA counts 10,273 residential structures in Greene County overall, 26 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 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.