How much flood risk does Greenlee County actually carry?
Greenlee County lands at the 29.6th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — with the 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. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Greenlee County
Out of 237 homes FEMA counts inside Greenlee County's mapped flood zone, 7 carry the flood policy federal law requires there — 3% compliance, short of full coverage. Across all residential structures in Greenlee 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.
How Greenlee County compares nationally
Greenlee County sits at rank 2268 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2458 of 3144 by population (1 is biggest). Greenlee County, Arizona is home to about 9,410 people across 1,842.838 square miles of land.
Your street may differ from Greenlee County's average
Across all of Greenlee County's 3,773 residential structures, 13 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 Greenlee 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.