Senedd constituency boundaries 2026

Following the Senedd (Members and Elections) Act 2024 (the Act) the Democracy and Boundary Commission Cymru (DBCC) put forward recommendations from the 2026 review. 16 Senedd constituencies are formed by combining 2 contiguous UK Parliamentary constituencies. Each constituency will be represented by 6 members bringing the total number of Senedd members to 96. These decisions will take effect automatically at the 2026 Senedd election. © Democracy and Boundary Commission Cymru, [2025], licensed under the Open Government Licence