This file is a best fit lookup between Output Areas (2021) and Senedd Cymru constituencies (SENC) and Senedd Cymru electoral regions (SENER) as at 31st December 2022 in Wales. (File Size - 2 MB) Field Names - OA21CD , SENC22CD, SENC22NM, SENER22CD, SENER22NMField Types - Text, Text, Text, Text, TextField Lengths - 9, 9, 39, 9, 19Entity name changed to reflect change from National Assemby for Wales (NAW) to Senedd Cymru (Welsh Parliament) (SEN)
For more information and an overview of best-fitting follow this link - https://geoportal.statistics.gov.uk/datasets/f0aac7ccbfd04cda9eb03e353c613faa/about