Is Addison County, VT in a flood zone?
FEMA's National Risk Index puts Addison County's flood hazard at the 47.7th 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 2.2 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Addison County's flood-insurance compliance gap
Addison 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 Addison County, not just the ones FEMA mandates, 0.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Addison County compares nationally
Addison County sits at rank 1705 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1236 of 3144 by population (1 is biggest). About 38,047 people live in Addison County, Vermont, spread over 766.332 square miles.
Your street may differ from Addison County's average
123 of Addison County's 15,113 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 Addison County's numbers. See the data quality guide for why Addison County, like hundreds of other counties, doesn't get a clean compliance percentage.