A lookup file of the local authority districts (local authority districts, unitary authorities, metropolitan districts, London boroughs) to the county and unitary authorities (counties, metropolitan districts, London boroughs, unitary authorities) in England and Wales as at 31 December 2018. (File Size = 72KB)Field Names - LAD18CD, LAD18NM, CTYUA18CD, CTYUA18NMField Types - Text, Text, Text, TextField Lengths - 9, 28, 9, 28NB: File amended to include correct CTYUAs for London Boroughs and Metropolitan districtsREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/LTLA18_UTLA18_EW_LUv2_5d94ed13335b492bb3f8e9b78cffb8ca/FeatureServer