Flood zone · North Dakota
Flood zone in North Dakota
Flood zone (FEMA NFHL) data for ZIP codes in North Dakota. 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 →
North Dakota top concern
Radon Zone 1, flooding (Red River), wind
North Dakota is uniformly Zone 1 radon. Red River of the North FEMA AE zones affect Fargo, Grand Forks. Wind exposure is significant statewide.
See North Dakota state page for the full state-level rollup across all 12 dimensions.
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