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 +3.0pp
Vulnerability score 7/10 (Labour projected to lose)
WelshBrexit-marginal

About the Gower constituency

Gower is a county constituency in Wales, covering most or all of Swansea. The sitting MP is Tonia Antoniazzi (Labour), first elected in June 2017.

At the 2024 general election, Labour won Gower with 43.4% of the vote, ahead of the Conservatives on 18.9%, a majority of 11,567 votes. Turnout was 62.0%.

If a general election were held today, PollCheck's projection at the current seven-poll average has Reform UK on 25.0% and Labour on 22.0% in Gower, a margin of 3.0 points, a projected change from Labour since 2024. The projection updates automatically as new polls are added.

Demographically, Gower is closely divided in the 2016 EU referendum (an estimated 49.3% voted Leave in 2016). About 37.5% of residents hold a degree, 75.9% of homes are owner-occupied, and the seat has a median age of about 47 (2021 Census).

Across the last 5 general elections on record, the seat has been won by Labour 4 times, the Conservatives 1 time (earlier years may be on predecessor boundaries).

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 ward-level 2024 election winners and a demographic view. Ward winners are Britain Elects' / New Statesman modelled estimates with an average ~4pp margin of error per ward. The demographic view splits the seat into small neighbourhoods (around 1,500 residents each, from the 2021 Census). Hover any area for detail.

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

The Westminster constituency of Gower sits entirely within Swansea Council. Local council elections are a separate ballot from Westminster general elections - English councils rotate their election cycles and Swansea was not due to vote in 2026, so the figures below show the most recent council ward results available.

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. Where the council held a May 2026 election, those results are shown; otherwise we show the most recent available ward result (via DCLEAPIL, 2014-2024), or, where the seat was uncontested at the last election, the current sitting councillor from OpenCouncilData. The "Shift since GE2024" column is only computed for May 2026 results - earlier council votes pre-date the GE, so no directional shift is shown.

Ward GE2024 winner Latest council winner Shift since GE2024 Turnout

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 result is on current boundaries. The 2019 row is the UK Parliament's notional recalculation onto the 2024 boundaries (directly comparable to 2024). The 2010, 2015 and 2017 rows are on the boundaries in force at the time and aren't directly comparable.

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

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