Nemaha County, NE: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Nemaha County scores at the 15.7th percentile for flood hazard, rated "Very Low" — among the lowest flood hazard in the country. The hazard here is driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.2 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Nemaha County's flood-insurance compliance gap
FEMA hasn't published a residential structure count for Nemaha County's mapped flood zone, so a reliable mandatory-compliance percentage can't be computed here — see the data quality guide for why this gap exists for roughly a quarter of US counties. Looking beyond the mandated zone, 0.2% of all residential structures in Nemaha County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Nemaha County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Nemaha County ranks 2681 — 1 being the highest hazard nationally — and 2656 by population among all 3144 counties covered here, where 1 is the largest. Nemaha County, Nebraska is home to about 7,046 people across 407.301 square miles of land.
Your street may differ from Nemaha County's average
FEMA counts 4,329 residential structures in Nemaha County overall, 7 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Nemaha County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Nemaha County's compliance figure is one of the ones affected by FEMA's incomplete denominator data — the data quality guide explains what that means and how many counties it touches.