Jerome County, ID: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Jerome County scores at the 31.1th 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 once every 7 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Jerome County
FEMA hasn't published a residential structure count for Jerome 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% of all residential structures in Jerome County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Jerome County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Jerome County ranks 2223 — 1 being the highest hazard nationally — and 1580 by population among all 3144 counties covered here, where 1 is the largest. About 26,056 people live in Jerome County, Idaho, spread over 597.545 square miles.
Checking a specific address in Jerome County
0 of Jerome County's 8,674 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Jerome County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Jerome 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.