Is Delta County, CO in a flood zone?
FEMA's National Risk Index puts Delta County's flood hazard at the 69.6th percentile nationally — below the national norm for flood 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.
Who actually carries the flood insurance FEMA requires
9.4% of the homes FEMA requires to carry flood insurance in Delta County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 20 policies against 214 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Delta County, not just the ones FEMA mandates, 0.2% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Delta County compares nationally
Delta County sits at rank 998 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1390 of 3144 by population (1 is biggest). Delta County, Colorado covers 1,142.126 square miles and counts roughly 32,215 residents.
Your street may differ from Delta County's average
FEMA counts 15,479 residential structures in Delta County overall, 32 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 Delta 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.