Iron County, UT flood risk explained
Flood hazard in Iron County sits at the 44.6th national percentile, below the national norm for flood hazard; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.6 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 Iron 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, 0.6% of all residential structures in Iron County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Iron County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Iron County ranks 1802 — 1 being the highest hazard nationally — and 830 by population among all 3144 counties covered here, where 1 is the largest. About 65,936 people live in Iron County, Utah, spread over 3,296.167 square miles.
What to do next if you own or are buying in Iron County
Across all of Iron County's 17,614 residential structures, 96 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Iron County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Iron 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.