; ) is a six-member constituency of the Senedd (Welsh Parliament; ) used in the 2026 Senedd election. It covers areas in the south-east of Wales, particularly parts of Caerphilly and Newport.
It was proposed following the 2026 review of Senedd constituencies, and is a pairing of the two UK Parliament constituencies of Newport East and Newport West and Islwyn. It has a Welsh-only name.
Boundaries A Senedd constituency comprising the boundaries of the UK Parliament constituencies of Newport East and Newport West and Islwyn, has been proposed by the Democracy and Boundary Commission Cymru for the 2026 election to the Senedd (Welsh Parliament; ). It was initially proposed using the name Newport and Islwyn in September 2024, but was renamed to in December proposals with most constituencies using Welsh-only names. The Welsh-only name and boundaries were confirmed in the commission's final recommendations in March 2025. When announcing their candidates, Reform UK used "Newport East, Newport West and Islwyn" instead, using the English names for the pair of UK Parliament constituencies that form it.
It encompasses the entire of the principal area (county borough) of Newport and parts of Caerphilly County Borough in South Wales. The constituency was established in 2026, following the passing of the Senedd Cymru (Members and Elections) Act 2024. The act legislates electoral reform of the Senedd to create 16 larger "super constituencies", pairing the 32 UK Parliament constituencies in Wales, and using a new fully proportional voting system, with each constituency electing six Members of the Senedd (MSs) rather than one previously. Members of the Senedd Term Election Distribution MS MS MS MS MS MS 7th 2026 2 1 1 2 Dan Thomas(Ref) Peredur Owen Griffiths(PC) Art Wright(Ref) Lyn Ackerman(PC) Jayne Bryant (Lab) Natasha Asghar(Con)
Elections Elections in the 2020s
2026 result Party Vote % Seats Reform UK 25,571 32.9 2 Plaid Cymru 23,069 29.7 2 Labour 10,622 13.7 1 Conservative 8,847 11.4 1 Green 5,898 7.6 0 Liberal Democrats 2,683 3.5 0 Open Party 435 0.6 0 Heritage 349 0.4 0 Independent 224 0.3 0
References