Publisher

Environment Agency

2 layers on Open Index come from Environment Agency. All under the Open Government Licence.

Layers

LayerLevel of detailCoversUpdatesLatest
Flood risk by postcodeEnvironment Agency · Office for National StatisticsPostcodeQuarterlyUpdated Sep 2026
Flood zonesEnvironment Agency · Natural Resources WalesOutlineEvery few yearsUpdated Jul 2026

The sources, and how to credit them

Risk of Flooding from Rivers and Sea: Postcodes in Areas at Risk
Published by
Environment Agency
Licence
Open Government Licence 3.0
Edition
Postcodes in Areas at Risk 2026-06-18
Published
18 June 2026

© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064

Used in flood risk by postcode.

Flood Map for Planning, Flood Zones (England)
Published by
Environment Agency
Licence
Open Government Licence 3.0
Edition
Flood Zones 2026-07-15
Published
15 July 2026

© Environment Agency copyright and/or database right 2025. All rights reserved.

Used in flood zones.