How much flood risk does Treasure County actually carry?
Treasure 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 3 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Treasure County
Treasure 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 Treasure 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.
Treasure County against the rest of the country
Treasure County sits at rank 3071 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 3122 of 3144 by population (1 is biggest). About 739 people live in Treasure County, Montana, spread over 977.801 square miles.
Your street may differ from Treasure County's average
FEMA counts 614 residential structures in Treasure County overall, 0 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 Treasure County's numbers. See the data quality guide for why Treasure County, like hundreds of other counties, doesn't get a clean compliance percentage.