Is St. Bernard Parish, LA in a flood zone?
FEMA's National Risk Index puts St. Bernard Parish's flood hazard at the 74.4th percentile nationally — a middling flood hazard by national standards — driven by coastal storm surge rather than inland rivers — FEMA's model puts a surge event here at about 4.2 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
St. Bernard Parish's flood-insurance compliance gap
The raw NFIP numbers for St. Bernard Parish 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 St. Bernard Parish, not just the ones FEMA mandates, 56.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
St. Bernard Parish against the rest of the country
St. Bernard Parish sits at rank 841 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1097 of 3144 by population (1 is biggest). St. Bernard Parish, Louisiana is home to about 44,783 people across 377.528 square miles of land.
What to do next if you own or are buying in St. Bernard Parish
8,351 of St. Bernard Parish's 14,712 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 St. Bernard Parish's numbers. See the data quality guide for why St. Bernard Parish, like hundreds of other counties, doesn't get a clean compliance percentage.