How much flood risk does Lorain County actually carry?
Lorain County lands at the 90.2th 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 2.2 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Lorain County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Lorain County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 29.9% of them do — 378 active policies against 1,264 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Lorain County, not just the ones FEMA mandates, 0.5% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Lorain County ranks
Lorain County sits at rank 325 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 231 of 3144 by population (1 is biggest). About 322,030 people live in Lorain County, Ohio, spread over 490.536 square miles.
Checking a specific address in Lorain County
627 of Lorain County's 115,326 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 Lorain 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.