31,672 Environment Agency recorded flood outlines since 1900 — the actual mapped extent of past floods, not predictions. Zoom in to see the outlines; click one for details.
A recorded outline means water was mapped there during a past flood. The absence of an outline does not mean a place has never flooded — only that no record exists. Surface-water-only floods are mostly excluded. Decade counts partly reflect recording effort — mapping improved hugely after 2000 — so year-on-year comparisons say as much about record-keeping as weather. Check your own location with the postcode flood briefing or see the flood help guide. Contains Environment Agency data © Crown copyright and database right.
Mapped extent of the recorded outline; large events span several outlines and counties (county = outline centroid).
Outline counts, not severity — multiple surveys can map one flood. County assigned from the outline centroid.
