How much flood risk does Sheridan County actually carry?
Sheridan County lands at the 4.1th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 14 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
Sheridan County is one of the counties where FEMA's own denominator for mandated flood-zone structures is missing, so no compliance rate is shown rather than a guessed one — the data quality guide covers how common this is. Across all residential structures in Sheridan County, not just the ones FEMA mandates, 0% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Sheridan County ranks
Sheridan County sits at rank 3022 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 3093 of 3144 by population (1 is biggest). Sheridan County, North Dakota covers 972.226 square miles and counts roughly 1,268 residents.
What to do next if you own or are buying in Sheridan County
0 of Sheridan County's 1,054 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Sheridan County's numbers. See the data quality guide for why Sheridan County, like hundreds of other counties, doesn't get a clean compliance percentage.