Is Delta County, MI in a flood zone?
FEMA's National Risk Index puts Delta County's flood hazard at the 60.4th 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
Delta 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 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 1304 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1277 of 3144 by population (1 is biggest). About 36,687 people live in Delta County, Michigan, spread over 1,171.094 square miles.
Checking a specific address in Delta County
FEMA counts 17,745 residential structures in Delta County overall, 42 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. See the data quality guide for why Delta County, like hundreds of other counties, doesn't get a clean compliance percentage.