This CSV file provides a lookup of postcodes in the United Kingdom as at February 2024 to the new Westminster Parliamentary Constituencies that became operable on the 4th July 2024. (File size 20MB). N.B. This v2 release includes updated Scottish Westminster Parliamentary codes for the following five constituencies:S14000006 – Ayr, Carrick and Cumnock – new code = S14000107S14000008 – Berwickshire, Roxburgh and Selkirk – new code = S14000108S14000010 – Central Ayrshire – new code = S14000109S14000040 – Kilmarnock and Loudoun – new code = S14000110S14000058 – West Aberdeenshire and Kincardine – new code = S14000111