How much flood risk does Northwest Hills Planning Region actually carry?
Northwest Hills Planning Region lands at the 88th percentile of FEMA's National Risk Index for flooding, "Relatively Moderate" territory — a middling flood hazard by national standards — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 3.5 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Northwest Hills Planning Region
The raw NFIP numbers for Northwest Hills Planning Region would imply over 100% of mandated homes carry a policy, which just means FEMA's structure-count denominator for this county is wrong, not that compliance is unusually good. This is flagged rather than clipped to look normal — details in the data quality guide. Across all residential structures in Northwest Hills Planning Region, not just the ones FEMA mandates, 0.7% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Northwest Hills Planning Region compares nationally
Northwest Hills Planning Region sits at rank 397 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 558 of 3144 by population (1 is biggest). Northwest Hills Planning Region, Connecticut covers 786.642 square miles and counts roughly 114,101 residents.
Checking a specific address in Northwest Hills Planning Region
FEMA counts 43,495 residential structures in Northwest Hills Planning Region overall, 313 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 Northwest Hills Planning Region's numbers. See the data quality guide for why Northwest Hills Planning Region, like hundreds of other counties, doesn't get a clean compliance percentage.