Greene County, NY flood risk explained
Flood hazard in Greene County sits at the 81.8th 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 1.9 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Greene County
Out of 841 homes FEMA counts inside Greene County's mapped flood zone, 188 carry the flood policy federal law requires there — 22.4% compliance, short of full coverage. Looking beyond the mandated zone, 1.1% of all residential structures in Greene County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Greene County compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Greene County ranks 599 — 1 being the highest hazard nationally — and 1052 by population among all 3144 counties covered here, where 1 is the largest. Greene County, New York is home to about 46,903 people across 647.161 square miles of land.
What to do next if you own or are buying in Greene County
292 of Greene County's 26,809 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Greene 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.