This file contains the digital vector boundaries for Counties and Unitary Authorities, in the United Kingdom, as at December 2025.The boundaries available are: (BFE) Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include offshore islands). 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_BFE/FeatureServer REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Counties_and_Unitary_Authorities_(December_2025)Boundaries_UK_BFE/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_BFE/MapServer