UK Postcode to Parliament Constituencies

This instant download contains all UK Postcodes (circa. 1.9 million) and the Postcode’s associated Parliamentary Constituencies (since the General Election 4th July 2024) showing the Westminster, Scottish Parliamentary, Northern Ireland, Stormont (NI) Constituencies and the Alternative Constituencies for Welsh Assembly.

In addition, we include a list of circa. 892,441 ‘Retired’ postcodes with historic Parliamentary data. The product files are updated quarterly to ensure they remain current, and our clients receive an inclusive complete refresh every three months as part of the service, for no additional fee.

Westminster Parliamentary Constituencies are the areas used to elect Members of Parliament (MPs) to the House of Commons, which is the primary legislative chamber of the UK and is located in Westminster, London.

Applications

The Parliamentary Constituency data is ideal for relating Postcodes and address information to the respective Parliamentary Constituency and determining the resident MP and Political Party. The data is therefore essential for:

• Government Relations Officers or Political Policy Makers
• Relate Postcodes and addresses to the current UK political geography
• Determining which constituencies to lobby based upon employee, supplier and customer sites

Output

Three file formats are available (Comma Separated Variable (CSV), Microsoft Access (ACC) and Microsoft Excel (XLS)).

The CSV version consists of two text files with header records and will open in any common application including SQL, Word, MS Access and MS Excel.  Initially you receive one ZIP compressed file that when unpacked will reveal ten product files:

A consolidated file containing all 1.9 million postcodes for England, Scotland, Wales and Northern Ireland: (1) PAR-FLL-UK-CSV.  Additionally, (2) Northern Ireland MLAs, plus (3) Scottish Parliamentary Regions (4) Welsh Assembly Regions.  We split files (1) & (2) due to the number of postcodes in the UK so that they open in Excel without size limitations.

Fields provided in the Post 2024 Election file:

• Full Postcode (e.g. AB10 1AB)
• Postcode Sector (e.g. AB10 1)
• Postcode District(e.g. AB10)
• Postcode Area (e.g. AB)
• Westminster Parliamentary Constituency Code (e.g. S14000001)
• Westminster Parliamentary Constituency Name (e.g. Aberdeen North)
• MP First Name
• MP Surname
• MP Political Party (e.g. Scottish National Party)
• Election Result (e.g. SNP Hold)
• Scottish Parliamentary Constituency
• MSP Name (e.g. Kevin Stewart)
• MSP Party (e.g. Scottish National)
• Scottish Parliament Region (e.g. North East Scotland)
• Welsh Assembly (e.g. Vale of Glamorgan)
• AM Name (e.g. Jane Hutt)
• AM Party (e.g. South Wales Central)
• Welsh Assembly Region (e.g. South Wales Central)
• Country (e.g. Scotland)
• Date Postcode Introduced (e.g. 201106)
• Date Postcode Retired (if applicable)

* Party Abbreviations

• Alliance Alliance
• Con Conservative
• DUP Democratic Unionist Party
• Green Green
• Ind Independent
• Lab Labour/ Labour and Co-operative
• LD Liberal Democrat
• PC Plaid Cymru
• RUK Reform UK
• SDLP Social Democratic and Labour Party
• SF Sinn Fein
• SNP Scottish National Party
• Spk Speaker
• TUV Traditional Unionist Voice
• UUP Ulster Unionist Party