How much flood risk does Summit County actually carry?
Summit County lands at the 94th 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 1.4 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Summit County
Out of 1,134 homes FEMA counts inside Summit County's mapped flood zone, 324 carry the flood policy federal law requires there — 28.6% compliance, short of full coverage. Across all residential structures in Summit County, not just the ones FEMA mandates, 0.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Summit County against the rest of the country
Summit County sits at rank 205 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 135 of 3144 by population (1 is biggest). About 538,370 people live in Summit County, Ohio, spread over 412.686 square miles.
Your street may differ from Summit County's average
FEMA counts 201,328 residential structures in Summit County overall, 724 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 Summit 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.