Slope County, ND Flood Zone & Flood Risk Data
Slope County, ND flood risk explained
Flood hazard in Slope County sits at the 0.6th national percentile, among the lowest flood hazard in the country; driven by inland rivers and flash flooding rather than the coast, FEMA's model puts a flood event here at about once every 28 years. That's a county-wide figure, not a per-address one, FEMA's parcel maps are a live lookup, not a bulk file.
Slope County's flood-insurance compliance gap
FEMA hasn't published a residential structure count for Slope 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, 0.2% of all residential structures in Slope County carry flood coverage voluntarily or otherwise, relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Slope County ranks
Among the 3144 US counties FEMA scores for flood hazard, Slope County ranks 3126, 1 being the highest hazard nationally, and 3130 by population among all 3144 counties covered here, where 1 is the largest. About 660 people live in Slope County, North Dakota, spread over 1,215.264 square miles.
What to do next if you own or are buying in Slope County
1 of Slope County's 422 residential structures carry flood coverage of some kind, per FEMA's latest count, useful context, not a substitute for checking one parcel.
Where Slope County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Slope 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.