Water Switch Rates by Wholesaler Region since April 2017
The below map shows switches per 1000 Water SPIDs in each of Ofwat’s Wholesaler Supply Boundaries. This map is updated quarterly. Last update 10/09/2025 10:20
Disclaimer
Postal Boundaries © GeoLytix copyright and database right 2012 Contains Ordnance Survey data © Crown copyright and database right 2012 Contains Royal Mail data © Royal Mail copyright and database right 2012 Contains National Statistics data © Crown copyright and database right 2012. GIS vector data. This dataset was first accessioned in the EDINA ShareGeo Open repository on 14/03/2014 and migrated to Edinburgh DataShare on 22/02/2017.
Water supply areas data provided by Ofwat (v1_4 of 25/05/2022). For the purposes of this map, the postal sector’s water wholesaler is the wholesaler region that the centre point of the postal sector is located within.