Newport West and Islwyn (UK Parliament constituency)

Newport West and Islwyn (Welsh: Gorllewin Casnewydd ac Islwyn) 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. It is currently represented by Labour's Ruth Jones, who was previously MP for Newport West from 2019 to 2024.

Newport West and Islwyn
constituency for the House of Commons
Show location of constituency Show location within Wales Interactive map of the constituency.
Location of the constituency within Wales
Electorate	76,234 (March 2020)[1]
Major settlements	Newport (part), Risca, Newbridge, Blackwood
Current constituency
Created	2024
Member of Parliament	Ruth Jones (Labour)
Seats	One
Overlaps
Senedd	Newport West, South Wales East

Boundaries

Under the 2023 review, the constituency was defined as being composed of the following, as they existed on 1 December 2020:^[2]

• The County Borough of Caerphilly wards of:Abercarn; Argoed; Blackwood; Cefn Fforest; Crosskeys; Crumlin; Newbridge; Penmaen; Risca East; Risca West.

• The City and County Borough of Newport wards of: Allt-yr-Yn; Gaer; Graig; Marshfield; Rogerstone; Tredegar Park.

Following local government boundary reviews which came into effect in May 2022,^[3][4] the constituency now comprises the following from the 2024 general election:^[5][6]

• The following Caerphilly County Borough wards from Islwyn (constituency abolished):
  • Abercarn
  • Argoed
  • Blackwood
  • Cefn Fforest and Pengam (part)
  • Crosskeys
  • Crumlin
  • Newbridge
  • Penmaen
  • Risca East
  • Risca West

• The following City of Newport wards from Newport West (constituency abolished):
  • Allt-yr-yn
  • Gaer
  • Graig
  • Rogerstone East
  • Rogerstone North
  • Rogerstone West
  • Tredegar Park and Marshfield

Elections

Elections in the 2020s

General election 2024: Newport West and Islwyn^[7][8]

Party		Candidate	Votes	%	±%
	Labour	Ruth Jones	17,409	41.5	−0.3
	Reform UK	Paul Taylor	8,541	20.4	+11.5
	Conservative	Nick Jones	6,710	16.0	−21.7
	Plaid Cymru	Brandon Ham	3,529	8.4	+3.8
	Liberal Democrats	Mike Hamilton	2,087	5.0	−0.1
	Green	Kerry Vosper	2,078	5.0	N/A
	Independent	George Etheridge	1,597	3.8	+3.8
Majority			8,868	21.1	N/A
Turnout			41,951	55.4	−8.3
Registered electors			75,781
	Labour win (new seat)

Elections in the 2010s

2019 notional result [a] [9]
Party		Vote	%
	Labour	20,286	41.8
	Conservative	18,285	37.7
	Brexit Party	4,301	8.9
	Liberal Democrats	2,474	5.1
	Plaid Cymru	2,244	4.6
	Green Party	947	2.0
Majority		2,001	4.1
Turnout		48,537	63.7
Electorate		76,234

Notes

1. Estimate of the 2019 general election result as if the revised boundaries recommended under the 2023 boundary review were in place