Sandusky County, OH: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Sandusky County scores at the 67.7th percentile for flood hazard, rated "Relatively Low" — below the national norm for flood hazard. The hazard here is 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. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Who actually carries the flood insurance FEMA requires
20.5% of the homes FEMA requires to carry flood insurance in Sandusky County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 94 policies against 458 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Looking beyond the mandated zone, 0.5% of all residential structures in Sandusky County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Sandusky County compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Sandusky County ranks 1061 — 1 being the highest hazard nationally — and 904 by population among all 3144 counties covered here, where 1 is the largest. About 58,866 people live in Sandusky County, Ohio, spread over 408.246 square miles.
What to do next if you own or are buying in Sandusky County
Across all of Sandusky County's 25,689 residential structures, 119 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Sandusky County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.