How much flood risk does Rio Blanco County actually carry?
Rio Blanco County lands at the 51th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.1 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
Rio Blanco 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 Rio Blanco County, not just the ones FEMA mandates, 0.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Rio Blanco County against the rest of the country
Rio Blanco County sits at rank 1607 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2690 of 3144 by population (1 is biggest). About 6,607 people live in Rio Blanco County, Colorado, spread over 3,220.971 square miles.
Your street may differ from Rio Blanco County's average
15 of Rio Blanco County's 3,822 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 Rio Blanco County's numbers. See the data quality guide for why Rio Blanco County, like hundreds of other counties, doesn't get a clean compliance percentage.