How much flood risk does Adams County actually carry?
Adams County lands at the 2.5th 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 7 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Adams County
Adams 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 Adams 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.
How Adams County compares nationally
Adams County sits at rank 3070 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 3030 of 3144 by population (1 is biggest). Adams County, North Dakota covers 987.547 square miles and counts roughly 2,141 residents.
What to do next if you own or are buying in Adams County
0 of Adams County's 1,027 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 Adams County's numbers. See the data quality guide for why Adams County, like hundreds of other counties, doesn't get a clean compliance percentage.