Flood zone · Ohio
Flood zone in Ohio
Flood zone (FEMA NFHL) data for ZIP codes in Ohio. Pick a ZIP below to dive into the flood zone summary.
Last verified 2026-05-13 · methodology
What lands here
Pages show the flood zone code, what it means in plain English (1% annual chance zone, 0.2% annual chance zone, or outside mapped hazard), and the base flood elevation where assigned.
Source & refresh
FEMA NFHL. Refreshed quarterly loma updates. Primary source →
Ohio top concern
Lead service lines, Great Lakes erosion
Ohio has heavy LCRR obligations in Cleveland, Cincinnati, Columbus, Toledo. Lake Erie shoreline erosion expands FEMA AE zones in some lakefront counties. Tornado exposure on the Indiana/Ohio border.
See Ohio state page for the full state-level rollup across all 12 dimensions.
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