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Flood zone · Alabama

Flood zone in Alabama

Flood zone (FEMA NFHL) data for ZIP codes in Alabama. 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 →

Alabama top concern

Tornado risk + rural water systems

Alabama sits in Dixie Alley with peak tornado activity in March-April. Coastal Mobile/Baldwin counties also carry FEMA-mapped storm-surge zones. Many rural water systems serve <500 connections, making EPA SDWIS compliance variability higher than in metro counties.

See Alabama state page for the full state-level rollup across all 12 dimensions.

Read more on flood zone

Editorial deep-dives explaining the source data, its limits, and how to read it.

4 Alabama ZIPs