Dataset - data.gov.uk

Local Authority District (April 2025) to LAU1 to ITL3 to ITL2 to ITL1...

A lookup between local authority districts (LAD) as at 1st April 2025, LAU1 and International Territorial Levels (ITL level 3, ITL level 2 and ITL level 1 areas as at 1st...
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You can also access this registry using the API (see API Docs).