This file is a best fit lookup between Output Areas (2021), Civil Parishes/Non-Civil Parished Areas, Local Authorities, Counties/Unitary Authorities, Regions and Country in England and Wales as at 31st December 2025 (File Size - 25 MB) Field Names - OA21CD, PARNCP25CD, PARNCP25NM, PARNCP25NMW, LAD25CD, LAD25NM, LAD25NMW, CTYUA25CD, CTYUA25NM, CTYUA25NMW, RGN25CD, RGN25NM, RGN25NMW, CTRY25CD, CTRY25NM, CTRY25NMW, Field Types - Text, Text, Text, Text, Text,Text, Text, Text, Text, Text,Text, Text, Text, Text, Text,Text, Field Lengths - 9, 9, 66, 42, 9, 35, 24, 9 35, 24, 9, 24, 5, 9, 7, 6,