A best-fit lookup between postcodes, 2021 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at May 2023 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 22 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, MSOA21CD, LADCD, LSOA21NM, MSOA21NM, LADNM, LADNMWField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45