Is Nance County, NE in a flood zone?
FEMA's National Risk Index puts Nance County's flood hazard at the 14.1th percentile nationally — among the lowest flood hazard in the country — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 3 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Nance County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Nance 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, 2.6% of them do — 6 active policies against 234 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Nance 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 Nance County ranks
Nance County sits at rank 2732 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2940 of 3144 by population (1 is biggest). About 3,262 people live in Nance County, Nebraska, spread over 441.595 square miles.
Checking a specific address in Nance County
Across all of Nance County's 2,901 residential structures, 8 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 Nance 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.