Constituency profile

Gower

Wales · County constituency · Swansea borough

Tonia Antoniazzi MP
Sitting MP

Tonia Antoniazzi

Labour

First elected June 2017

Current PollCheck projection

Region & type
Wales
County constituency, Swansea council
Last 5 GE winners
LCLLL
Labour 4/5, Conservative 1/5
EU referendum 2016
49.3% Leave
UK average 51.9%; -2.6pp below mean
Current outlook
Reform UK +0.5pp
Vulnerability score 7/10 (Labour projected to lose)
WelshBrexit-marginal

About the Gower constituency

Gower is a county constituency in Wales. The sitting MP is Tonia Antoniazzi (Labour), first elected in June 2017. At the 2024 general election, Labour won with 43.4% to 18.9% for the Conservatives, a majority of 11,567 votes on a 62.0% turnout. PollCheck's current projection, at the seven-poll average, has Reform UK on 24.2% and Labour on 23.7%, a margin of 0.5 points - a projected change of hands from Labour.

Who lives in Gower? Constituency demographics

From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.

Leave vote 2016
49.3%
UK average ~52%
Degree or above
37.5%
UK average ~34%
No qualifications
15.4%
UK average ~18%
Owner-occupied
75.9%
UK average ~63%
Renting (social + private)
23.7%
UK average ~36%
Median age
46.9
UK median ~40
Age 65+
29.3%
UK average ~19%
Age 18-34
24.5%
UK average ~28%

How did Gower vote in 2024 and how would it vote now?

2024 vote shares from the HoC Library. Current projection is at the 7-poll average.

2024 general election

Lab hold · majority 11,567 votes (24.5pp) · turnout 62.0%

Current projection

If a general election were held today, at current poll average

Map of Gower

Switch between GE2024 ward winners (modelled estimates, ~4pp average error) and a demographic view from the 2021 Census. Hover any area for detail. How the map is built ›

Senedd 2026 layer

How Gower voted at the Senedd election (7 May 2026)

Gower sits entirely within the Senedd constituency of Gŵyr Abertawe. Senedd elections use a closed-list proportional system; each Senedd seat returns six members.

Senedd constituencyShare of GowerWinnerRunner-upSeats (6 per constituency)
Gŵyr Abertawe100%Plaid Cymru 31.9%Reform UK 27.5%3 Plaid Cymru, 2 Reform UK, 1 Labour

Senedd 2026 results from official declarations. Overlap percentages are area-based using the post-2024 Westminster boundary against the new 16-seat Senedd boundary.

Council layer (not Westminster)

Gower within Swansea

Gower sits entirely within Swansea Council. Swansea was not due to vote in 2026, so the figures below are the most recent ward results available. About this layer ›

Council overlap

CouncilShare of seat
Swansea
61 LSOAs
100%

Recent council by-elections

Council ward by-elections held inside this seat, most recent first. The result column shows which party won; the share column shows the top three parties’ vote shares on the day.

DateWardResultTop 3 vote shares
18 Jun 2026Mumbles
Swansea
Con HOLDCon 37% Lab 18% Ref 18%
28 May 2026Fairwood
Swansea
LD GAIN from ConLD 29% Lab 23% Other 21%
29 Mar 2025Penllergaer
Swansea
Ind GAIN from Other

Most recent council ward results

Latest council winner per ward - May 2026 results where the council voted, otherwise the most recent available result. How this table is sourced ›

Ward GE2024 winner Latest council winner Shift since GE2024 Turnout
BishopstonLabour 39.8%vs Conservative 25.8%2022 Conservative 62.1%vs Labour 29.7%--
ClydachLabour 37.3%vs Reform 26.5%2022 Independent 50.6%vs Labour 36.2%--
CockettLabour 47.3%vs Reform 19.9%2022 Labour 70.9%vs Lib Dem 12.3%--
Dunvant and KillayLabour 47.2%vs Reform 16.0%2022 Lib Dem 40.9%vs Labour 39.5%--
FairwoodLabour 34.6%vs Conservative 26.7%2022 Conservative 40.6%vs Labour 31.9%--
Gorseinon and PenyrheolLabour 51.2%vs Reform 17.8%2022 Labour 82.3%vs Conservative 7.1%--
GowerConservative 33.3%vs Labour 32.4%2022 Conservative 56.2%vs Labour 26.1%--
GowertonLabour 41.0%vs Reform 18.9%2022 Independent 33.8%vs Labour 33.4%--
LlangyfelachLabour 40.9%vs Reform 23.3%2022 Others 65.9%vs Labour 22.8%--
LlwchwrLabour 45.3%vs Reform 18.2%2022 Labour 66.7%vs Plaid Cymru 18.4%--
MayalsLabour 37.8%vs Conservative 23.6%2022 Green 40.4%vs Conservative 29.4%--
MumblesLabour 38.2%vs Conservative 28.9%2022 Conservative 50.0%vs Labour 37.3%--
Pen-clawddLabour 48.4%vs Conservative 15.4%2022 Labour 60.9%vs Plaid Cymru 22.7%--
PenllergaerLabour 33.9%vs Reform 25.9%2022 Others 87.8%vs Labour 12.2%--
PennardLabour 31.9%vs Conservative 22.8%2022 Independent 50.2%vs Conservative 25.9%--
PontarddulaisLabour 39.4%vs Reform 18.7%2022 Independent 48.3%vs Labour 41.6%--
Pontlliw and TircoedLabour 43.3%vs Conservative 24.8%2022 Labour 51.5%vs Independent 48.5%--
WaunarlwyddLabour 53.6%vs Reform 17.7%2022 Labour 68.2%vs Green 21.7%--
West CrossLabour 45.5%vs Conservative 18.6%2022 Labour 58.9%vs Conservative 34.7%--

Projection trajectory

PollCheck's projection for Gower at each of the last 60 GB polls. Hover the chart for the underlying poll details.

Who has won Gower at past general elections?

2024 and notional 2019 rows are on current boundaries; 2010-2017 rows are on the boundaries in force at the time. More on boundaries ›

Year Result MP Lab Con LD Right (Ref/UKIP) Green Other Majority Turnout
2010Lab holdMartin Caton38.4%32.0%19.1%1.6% UKIP-2.3%2,68367.5%
2015Con gain from LabByron Davies37.0%37.1%3.6%11.2% UKIP2.7%1.2%2769.2%+1.7
2017Lab gain from ConTonia Antoniazzi49.9%42.7%2.0%1.4% UKIP-0.3%3,26973.3%+4.1
2019notionalLabour winnerTonia Antoniazzi 2019 MP, pre-review boundary45.8%39.9%5.9%--8.4%3,18170.6%-2.7
2024Lab holdTonia Antoniazzi43.4%18.9%5.5%18.1% Ref5.3%0.6%11,56762.0%-8.6

Earlier years are on pre-2024 boundaries; comparable results on the new boundary will be added when sourced.

Constituencies most like Gower

Five seats with similar demographic profiles to Gower. Politics shown for context.

What would change this seat?

Move the sliders to set national vote shares. The per-seat projection updates live. Reset returns to the current 7-poll average.

Related

Sources

Every figure on this page is computed from the sources below. Read the full methodology ›

Show full source list
  • 2024 general election results · UK Parliament Election Results portal and House of Commons Library briefing CBP-10009.
  • Notional 2019 results on 2024 boundaries · UK Parliament Election Results portal. Recalculated by Parliament; carries assumptions about how 2019 voters would have distributed across the redrawn boundaries.
  • Historic general election results (2010-2017) · House of Commons Library historic results files (on the boundaries in force at the time).
  • Ward-level GE2024 estimates · Britain Elects / New Statesman - article by Ben Walker, underlying spreadsheet. Modelled from constituency totals; average ~4pp per-ward MoE.
  • May 2026 council ward results · Democracy Club via PollCheck's locals 2026 dataset.
  • Earlier council ward results (2014-2024) · DCLEAPIL v1.0 (Jason Leman, drawing on Andrew Teale's LEAP dataset and Democracy Club).
  • Demographics · ONS Census 2021 (England and Wales), aggregated to constituency level using the ONS LSOA21 -> PCON24 best-fit lookup.
  • EU referendum 2016 estimates · Constituency-level Leave vote estimates (Hanretty 2017 method).
  • MP details and Cabinet roles · UK Parliament Members API. MP photos are fetched live from the same source.
  • Boundary geometry and lookups · ONS Open Geography Portal (PCON24 boundaries, LSOA21 boundaries, LSOA21-WD24-LAD24 best-fit lookup).
  • Current projection and trajectory · PollCheck's demographic swingometer applied to the rolling 7-poll average from aggregated GB polls. Not a true MRP - vote-share movements are applied through per-constituency sensitivity multipliers derived from demographic regressions.

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