zipradar

Flood zone · Kansas

Flood zone in Kansas

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

Kansas top concern

Radon, tornadoes, Ogallala aquifer

Kansas has Zone 1 radon coverage statewide and sits in central Tornado Alley. Western KS water systems draw from the depleting Ogallala aquifer; EPA SDWIS shows arsenic + nitrate compliance pressure in some rural systems.

See Kansas 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.

3 Kansas ZIPs