A best-fit lookup between postcodes, 2021 Census Output Areas (OA), LSOAs, MSOAs, LADs, CTYUAs, regions (RGN), countries (CTRY) and nationalities (NAT) as at May 2021 in England and Wales. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 23 MB).Field Names - PCD, GRIDGB1E, GRIDGB1N, OA21CD, LSOA21CD, LSOA21NM, MSOA21CD, MSOA21NM, LAD22CD, LAD22NM, LAD22NMW, CTYUA22CD, CTYUA22NM, CTYUA22NMW, RGN22CD, RGN22NM, RGN22NMW, CTRY22CD, CTRY22NM, CTRY22NMW, NAT22CD, NAT22NM, NAT22NMWField Types - All TextField Lengths - 7, 6, 7, 9, 9, 60, 9, 60, 9, 60, 60, 9, 60, 60, 9, 30, 30, 9, 10, 10, 9, 20, 20