International Territorial Level (ITL) Geography Hierarchy Boundaries, January 2021, UK

International Territorial Level (ITL) geography hierarchy boundaries, January 2021, UK.Boundaries used (BGC) are generalised (20m) and are clipped to the coastline for Great Britain, but for Northern Ireland they are generalised (20m) and are extent of the realm and are not clipped to the coastline for Northern Ireland.

Data and Resources

ArcGIS Hub DatasetHTML
ArcGIS GeoServiceArcGIS GeoServices REST API

Additional Info

Field	Value
Source	https://open-geography-portalx-ons.hub.arcgis.com/apps/ons::international-territorial-level-itl-geography-hierarchy-boundaries-january-2021-uk-2
Last Updated	August 25, 2025, 20:06 (UTC)
Created	September 20, 2023, 22:04 (UTC)