How much flood risk does Mahnomen County actually carry?
Mahnomen County lands at the 11.5th 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 2 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mahnomen County's flood-insurance compliance gap
0% of the homes FEMA requires to carry flood insurance in Mahnomen County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 0 policies against 8 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Mahnomen County, not just the ones FEMA mandates, 0.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Mahnomen County against the rest of the country
Mahnomen County sits at rank 2801 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2795 of 3144 by population (1 is biggest). Mahnomen County, Minnesota is home to about 5,296 people across 557.867 square miles of land.
Checking a specific address in Mahnomen County
FEMA counts 2,159 residential structures in Mahnomen County overall, 2 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Mahnomen County's numbers. The guide to what the Special Flood Hazard Area actually means explains why the mandatory-insurance rule exists and who it applies to.