Flood zone · Missouri
Flood zone in Missouri
Flood zone (FEMA NFHL) data for ZIP codes in Missouri. Pick a ZIP below to dive into the flood zone summary.
Last verified 2026-09-24 · methodology
What lands here
Not on zipradar yet. The plan is the FEMA flood zone code, what it means in plain English, and the base flood elevation where assigned. Until then, look the address up on FEMA's Flood Map Service Center.
Source & refresh
FEMA NFHL. Refreshed quarterly loma updates. Primary source →
Missouri top concern
Radon, flooding (Missouri/Mississippi), tornadoes
Missouri has Zone 1 radon across most of the state. Major river FEMA AE zones along the Missouri + Mississippi affect St. Louis, Hannibal, Cape Girardeau. Tornado risk peaks April-May.
See Missouri state page for the full state-level rollup across all 12 dimensions.
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