Is Mahoning County, OH in a flood zone?
FEMA's National Risk Index puts Mahoning County's flood hazard at the 88.1th percentile nationally — a middling flood hazard by national standards — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.1 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
Out of 71 homes FEMA counts inside Mahoning County's mapped flood zone, 31 carry the flood policy federal law requires there — 43.7% compliance, short of full coverage. Across all residential structures in Mahoning 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.
Mahoning County against the rest of the country
Mahoning County sits at rank 392 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 318 of 3144 by population (1 is biggest). Mahoning County, Ohio is home to about 225,786 people across 411.521 square miles of land.
Your street may differ from Mahoning County's average
Across all of Mahoning County's 92,416 residential structures, 143 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Mahoning 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.