This file is a best fit lookup between 2011 lower layer super output areas and upper tier local authorities in England and Wales as at 31 December 2019. (File size - 6MB)Field Names - LSOA11CD, LSOA11NM, UTLA19CD, UTLA19NM, FIDField Types - Text, Text, Text, TextField Lengths - 9, 33, 9, 35FID = The FID, or Feature ID is created by the publication process when the names and codes / lookup products are published to the Open Geography portal.W01000060 - Gwynedd 15B - now correctly allocated to W06000002 - Gwynedd
For more information and an overview of best-fitting follow this link - https://geoportal.statistics.gov.uk/datasets/f0aac7ccbfd04cda9eb03e353c613faa/about
REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/LSOA11_UTLA19_EW_LU_6289c3ca752b47e6809aa381effa3502/FeatureServer