Mountrail County, ND: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Mountrail County scores at the 11.9th 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 2 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Mountrail 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 Mountrail County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Mountrail County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Mountrail County ranks 2792 — 1 being the highest hazard nationally — and 2453 by population among all 3144 counties covered here, where 1 is the largest. About 9,474 people live in Mountrail County, North Dakota, spread over 1,825.163 square miles.
What to do next if you own or are buying in Mountrail County
Across all of Mountrail County's 4,718 residential structures, 0 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Mountrail County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Mountrail 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.