Fremont County, IA: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Fremont County scores at the 18.4th 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 2.4 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Fremont 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, 1.3% of all residential structures in Fremont County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Fremont County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Fremont County ranks 2606 — 1 being the highest hazard nationally — and 2702 by population among all 3144 counties covered here, where 1 is the largest. Fremont County, Iowa covers 511.168 square miles and counts roughly 6,494 residents.
What to do next if you own or are buying in Fremont County
Across all of Fremont County's 4,714 residential structures, 61 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Fremont County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Fremont 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.