How much flood risk does Greenup County actually carry?
Greenup County lands at the 68.4th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.1 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Greenup County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Greenup County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 20.8% of them do — 296 active policies against 1,424 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Greenup County, not just the ones FEMA mandates, 2.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Greenup County compares nationally
Greenup County sits at rank 1036 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1309 of 3144 by population (1 is biggest). Greenup County, Kentucky covers 344.455 square miles and counts roughly 35,273 residents.
Your street may differ from Greenup County's average
Across all of Greenup County's 15,241 residential structures, 320 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 Greenup 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.