Yates County, NY: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Yates County scores at the 67.5th percentile for flood hazard, rated "Relatively Low" — below the national norm for flood hazard. 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 once every 1 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Yates County
FEMA hasn't published a residential structure count for Yates 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, 1.5% of all residential structures in Yates County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Yates County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Yates County ranks 1068 — 1 being the highest hazard nationally — and 1637 by population among all 3144 counties covered here, where 1 is the largest. Yates County, New York covers 338.168 square miles and counts roughly 24,387 residents.
Checking a specific address in Yates County
175 of Yates County's 11,883 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Yates County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Yates 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.