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This file contains the digital vector boundaries for Counties and Unitary Authorities, in the United Kingdom, as at December 2025.
The boundaries available are: (BSC) Super Generalised (200m) - clipped to the coastline (Mean High Water mark).
Contains both Ordnance Survey and ONS Intellectual Property Rights.
REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Counties_and_Unitary_Authorities_December_2025_Boundaries_UK_BSC/FeatureServer
REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Counties_and_Unitary_Authorities_December_2025_Boundaries_UK_BSC/WFSServer?request=getcapabilities&service=wfs
REST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Counties_and_Unitary_Authorities_December_2025_Boundaries_UK_BSC/MapServer
All datasets from Office for National Statistics
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ons.geography@ons.gov.uk
FOI.Team@ons.gov.uk
