How much flood risk does Jackson County actually carry?
Jackson County lands at the 57.2th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below 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 1.6 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
10.6% of the homes FEMA requires to carry flood insurance in Jackson County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 33 policies against 311 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Jackson 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.
Where Jackson County ranks
Jackson County sits at rank 1409 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1376 of 3144 by population (1 is biggest). Jackson County, Ohio is home to about 32,723 people across 420.31 square miles of land.
Checking a specific address in Jackson County
FEMA counts 15,279 residential structures in Jackson County overall, 58 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 Jackson 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.