Broome County, NY: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Broome County scores at the 93.2th percentile for flood hazard, rated "Relatively Moderate" — a middling flood hazard by national standards. 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 3.4 times a year. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Broome 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, 1.8% of all residential structures in Broome County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Broome County ranks
Among the 3144 US counties FEMA scores for flood hazard, Broome County ranks 231 — 1 being the highest hazard nationally — and 362 by population among all 3144 counties covered here, where 1 is the largest. Broome County, New York is home to about 196,397 people across 705.651 square miles of land.
Checking a specific address in Broome County
1,233 of Broome County's 70,396 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Broome County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Broome 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.