Neath and Swansea East (UK Parliament constituency)

Neath and Swansea East (Welsh: Castell Nedd a Dwyrain Abertawe) is a constituency of the House of Commons in the UK Parliament, first contested at the 2024 general election, following the 2023 review of Westminster constituencies. Carolyn Harris of Labour is the constituency's first Member of Parliament (MP); she was previously MP for Swansea East from 2015 to 2024.

Boundaries

Under the 2023 review, the constituency was defined as being composed of the following, as they existed on 1 December 2020:

The County Borough of Neath Port Talbot wards of Aberdulais; Blaengwrach; Bryn-côch North; Bryn-côch South; Cadoxton; Cimla; Coedffranc Central; Coedffranc North; Coedffranc West; Crynant; Dyffryn; Glynneath; Neath East; Neath North; Neath South; Onllwyn; Resolven; Seven Sisters; Tonna.

The City and County of Swansea wards of: Bonymaen; Clydach; Llansamlet; St. Thomas.

Following local government boundary reviews which came into effect in May 2022, the constituency now comprises the following from the 2024 general election:

The County Borough of Neath Port Talbot wards of Aberdulais; Blaengwrach and Glynneath East; Bryn-côch North; Bryn-côch South; Cadoxton; Cimla and Pelenna (part); Coedffranc Central; Coedffranc North; Coedffranc West; Crynant, Onllwyn and Seven Sisters; Dyffryn; Glynneath Central and East; Neath East; Neath North; Neath South; Resolven and Tonna.

The City and County of Swansea wards of: Bon-y-maen; Clydach (most); Llansamlet; St. Thomas; Waterfront (part).

By population, it is made up as follows:

49.0% from Neath, accounting for 67.3% of the former constituency (parts in Neath Port Talbot CB, except Coedffranc).
30.7% from Swansea East, accounting for 37.2% of the former constituency (parts in City of Swansea, except Clydach).

13.2% from Aberavon accounting for 18.9% of the former constituency (Coedffranc).
7.2% from Gower, accounting for 9.1% of that constituency under its 2010–2024 boundaries (Clydach).