Riding profile

Alyn and Deeside

UK constituency — Wales · Mixed · wales

The question

Alyn and Deeside: will Labour lose this seat to Reform UK?

Editorial read

Alyn and Deeside, a mixed constituency in Wales, elected a member with Labour in the previous cycle, with a 20-point margin. The Vote-Scope model projects Reform UK ahead at 31% vote share, against 23% for Labour, and the probability of a close race is negligible.

Sitting member

Sir Mark Tami

Sits with Labour

Since
2001-06-07
Parliament
59th

Current forecast

Reform UK

Safe

Probability
100%
Mean margin (pts)
9.8
P(close race)
0%

Projected vote share

Projection by party

  • Reform UK 30.9%
  • Labour 22.8%
  • Conservative 14.6%
  • Green 11.6%
  • Plaid Cymru 8.1%
  • Other 6.1%
  • Lib Dems 5.8%

In context

How this riding stacks up

Reform UK Labour Conservative Green
HereAlyn and Deeside 30.9%22.8%14.6%11.6%
National averageUnited Kingdom 25.3% +5.5 21.7% +1.1 18.9% −4.3 11.8% −0.2

Nationwide averages computed across the 650 riding-level projections (unweighted mean).

Previous election · UK 2024

Won by
Labour
Margin
20.3 pts
Margin shift vs current projection
-10.4 pts

Detailed result · UK 2024

Candidates and votes

Candidate Party Votes % Occupation
Mark Tami Elected Labour 18,395 42.4
Vicki Roskams Reform UK 9,601 22.1
Jeremy Kent Conservative 7,892 18.2
Richard Marbrow Lib Dems 2,065 4.8
Jack Morris Plaid Cymru 1,938 4.5
Karl Macnaughton Green 1,926 4.4
Edwin Duggan Other 1,575 3.6

Demographics

Who lives here

Population
102,432
Median age
42
Employment rate
76.7%

Data source : ONS mid-2022 population + Jan 2026 labour market

Last model run
Cycle
uk_2029