Glastonbury and Somerton
South West · County constituency · Somerset borough
About the Glastonbury and Somerton constituency
Glastonbury and Somerton is a county constituency in the South West. The sitting MP is Sarah Dyke (Liberal Democrat), first elected in July 2023. At the 2024 general election, the Liberal Democrats won with 42.7% to 28.9% for the Conservatives, a majority of 6,611 votes on a 65.0% turnout. PollCheck's current projection, at the seven-poll average, has the Liberal Democrats on 33.9% and Reform UK on 29.1%, a margin of 4.7 points.
Who lives in Glastonbury and Somerton? Constituency demographics
From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.
How did Glastonbury and Somerton 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
Current projection
Map of Glastonbury and Somerton
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 ›
Glastonbury and Somerton within Somerset
Glastonbury and Somerton sits entirely within Somerset Council. Somerset was not due to vote in 2026, so the figures below are the most recent ward results available. About this layer ›
Council overlap
| Council | Share of seat |
|---|---|
| Somerset | 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.
| Date | Ward | Result | Top 3 vote shares |
|---|---|---|---|
| 23 Oct 2025 | Glastonbury | LD HOLD | LD 36% Ref 22% Con 21% |
| 23 Nov 2024 | Blackmoor Vale | Con GAIN from LD | — |
| 9 May 2024 | Mendip South | LD HOLD | — |
| 29 Mar 2024 | Somerton | LD HOLD | — |
| 18 Aug 2023 | Castle Cary | LD GAIN from Con | — |
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 |
|---|---|---|---|---|
| Blackmoor Vale | Lib Dem 37.9%vs Conservative 33.6% | 2022 Lib Dem 55.1%vs Conservative 44.9% | - | 44.4% |
| Castle Cary | Lib Dem 42.3%vs Conservative 29.2% | 2022 Conservative 46.5%vs Lib Dem 45.9% | - | 45.7% |
| Coker | Lib Dem 45.3%vs Conservative 27.6% | 2022 Lib Dem 57.5%vs Conservative 38.7% | - | 45.6% |
| Curry Rivel & Langport | Lib Dem 44.9%vs Conservative 29.6% | 2022 Lib Dem 45.9%vs Conservative 40.0% | - | 84.3% |
| Glastonbury | Lib Dem 41.2%vs Conservative 26.5% | 2022 Lib Dem 34.8%vs Conservative 33.9% | - | - |
| Martock | Lib Dem 42.6%vs Conservative 28.0% | 2022 Lib Dem 41.2%vs Conservative 32.4% | - | 68.9% |
| Mendip South | Lib Dem 42.1%vs Conservative 26.4% | 2022 Lib Dem 52.7%vs Conservative 47.3% | - | 43.3% |
| Somerton | Lib Dem 48.0%vs Conservative 31.5% | 2022 Lib Dem 54.8%vs Conservative 39.5% | - | 45.2% |
| South Petherton & Islemoor | Lib Dem 60.3%vs Conservative 20.8% | 2022 Lib Dem 67.5%vs Conservative 24.6% | - | 51.9% |
| Street | Lib Dem 43.4%vs Conservative 24.5% | 2022 Lib Dem 62.3%vs Conservative 37.7% | - | - |
| Wincanton & Bruton | Lib Dem 37.8%vs Conservative 30.5% | 2022 Conservative 41.0%vs Lib Dem 23.0% | - | 49.4% |
Projection trajectory
PollCheck's projection for Glastonbury and Somerton at each of the last 60 GB polls. Hover the chart for the underlying poll details.
Who has won Glastonbury and Somerton 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 | Majority | Turnout |
|---|---|---|---|---|---|---|---|
| 2010predecessor | LD hold | David Heath Somerton and Frome MP | 4.4% | 44.5% | 47.5% | 1,817 | 74.3% |
| 2015predecessor | Con gain from LD | David Warburton Somerton and Frome MP | 7.3% | 53.0% | 19.4% | 20,268 | 72.4%-1.9 |
| 2017predecessor | Con hold | David Warburton Somerton and Frome MP | 17.2% | 56.7% | 20.9% | 22,906 | 75.7%+3.3 |
| 2019notional | Conservative winner | David Warburton Somerton and Frome MP, pre-review boundary | 9.6% | 57.5% | 30.9% | 14,183 | 76.0% |
| 2024 | LD gain from Con | Sarah Dyke | 6.5% | 28.9% | 42.7% | 6,611 | 65.0%-11.0 |
Glastonbury and Somerton was created or substantially redrawn by the 2023 boundary review. Pre-2024 rows below are for the predecessor seat Somerton and Frome (the seat that covered most of this area), so vote shares and majorities aren’t directly comparable to the post-2024 figures.
Constituencies most like Glastonbury and Somerton
Five seats with similar demographic profiles to Glastonbury and Somerton. Politics shown for context.
- ↑Age 65+31.1 / 32.1vs 22.7
- ↑Owner-occupied69.3 / 71.0vs 61.9
- ↓Under 3523.9 / 22.6vs 30.2
- ↑Owner-occupied69.3 / 70.9vs 61.9
- ↓Under 3523.9 / 24.3vs 30.2
- ↑Age 65+31.1 / 28.2vs 22.7
- ↑Age 65+31.1 / 31.3vs 22.7
- ↑Owner-occupied69.3 / 71.0vs 61.9
- ↓Under 3523.9 / 22.7vs 30.2
- ↑Age 65+31.1 / 31.5vs 22.7
- ↑Owner-occupied69.3 / 70.5vs 61.9
- ↓Under 3523.9 / 22.9vs 30.2
- ↑Age 65+31.1 / 30.2vs 22.7
- ↑Owner-occupied69.3 / 72.5vs 61.9
- ↓Under 3523.9 / 23.3vs 30.2
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.
If you spot a data issue, please let us know.