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Counties and Unitary Authorities (December 2016) Ultra Generalised Clipped Boundaries in England and Wales

Publisher
Office for National Statistics
Updated
8 July 2026
Topic
Mapping

Summary

This file contains the digital vector boundaries for Counties and Unitary Authorities, in England and Wales, as at December 2016. The boundaries available are: 

  • Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands);
  • Full resolution - clipped to the coastline (Mean High Water mark);
  • Generalised (20m) - clipped to the coastline (Mean High Water mark);
  • Super generalised (200m) - clipped to the coastline (Mean High Water mark) and
  • Ultra generalised (500m) - clipped to the coastline (Mean High Water mark).

Contains both Ordnance Survey and ONS Intellectual Property Rights.  
Download File Sizes• Full resolution - extent of the realm (17 MB)• Full resolution - clipped to the coastline (22 MB)• Generalised (20m) - clipped to the coastline (3 MB)• Super generalised (200m) - clipped to the coastline (470 KB)• Ultra generalised (500m) - clipped to the coastline (168 KB).
REST URL of ArcGIS for INSPIRE View Service –https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/MapServer/exts/InspireView 
REST URL of ArcGIS for INSPIRE Feature Download Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/MapServer/exts/InspireFeatureDownload
REST URL of Feature Service – https://ons-inspire.esriuk.com/arcgis/rest/services/Administrative_Boundaries/County_Unitary_Authorities_December_2016_Boundaries/FeatureServer

Data links

Link Format Preview Updated
Shapefile ZIP 21/4/2018
KML KML 21/4/2018
CSV CSV Preview 21/4/2018
GeoJSON GEOJSON 21/4/2018

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Additional information

Source Metadata
XML, HTML
Harvest GUID
http://geoportal1-ons.opendata.arcgis.com/datasets/687f346f5023410ba86615655ff33ca9_4