How much flood risk does Cuyahoga County actually carry?
Cuyahoga County lands at the 98.7th percentile of FEMA's National Risk Index for flooding, "Relatively High" territory — well above the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.8 times a year. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Cuyahoga County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Cuyahoga 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, 37.5% of them do — 301 active policies against 802 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Cuyahoga 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.
Where Cuyahoga County ranks
Cuyahoga County sits at rank 46 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 36 of 3144 by population (1 is biggest). Cuyahoga County, Ohio covers 457.232 square miles and counts roughly 1,240,594 residents.
What to do next if you own or are buying in Cuyahoga County
858 of Cuyahoga County's 441,210 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 Cuyahoga 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.