Barnsley South
Yorkshire and The Humber · County constituency · Barnsley borough
About the Barnsley South constituency
Barnsley South is a county constituency in Yorkshire and The Humber. The sitting MP is Stephanie Peacock (Labour), first elected in June 2017. At the 2024 general election, Labour won with 46.7% to 33.2% for Reform UK, a majority of 4,748 votes on a 46.2% turnout. PollCheck's current projection, at the seven-poll average, has Reform UK on 47.9% and Labour on 32.4%, a margin of 15.5 points - a projected change of hands from Labour.
Who lives in Barnsley South? Constituency demographics
From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.
How did Barnsley South 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 Barnsley South
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 ›
Barnsley South within Barnsley
Barnsley South sits entirely within Barnsley Council. The figures below are from the council elections held on 7 May 2026. About this layer ›
Council overlap
| Council | Share of seat | Projection |
|---|---|---|
| Barnsley | 100% | View projection › |
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 |
|---|---|---|---|---|
| Darfield | Labour 46.3%vs Reform 32.5% | May 2026 Reform 50.1%vs Labour 37.3%now part of Darfield Great Houghton | Labour→Reform +13.3pp | 37.7% |
| Dearne North | Labour 45.3%vs Reform 36.3% | May 2026 Reform 51.9%vs Labour 32.5% | Labour→Reform +14.2pp | 26.7% |
| Dearne South | Labour 47.0%vs Reform 34.4% | May 2026 Reform 53.8%vs Labour 34.6% | Labour→Reform +15.9pp | 28.9% |
| Hoyland Milton | Labour 49.1%vs Reform 30.7% | May 2026 Reform 49.5%vs Labour 36.6% | Labour→Reform +15.6pp | 38.0% |
| Kingstone | Labour 46.1%vs Reform 34.5% | May 2026 Lib Dem 37.6%vs Reform 28.9% | Labour→Lib Dem +28.3pp | 37.6% |
| Rockingham | Labour 45.6%vs Reform 31.4% | May 2026 Reform 44.8%vs Labour 23.9% | Labour→Reform +17.5pp | 39.5% |
| Stairfoot | Labour 43.4%vs Reform 36.1% | May 2026 Reform 50.4%vs Labour 33.4% | Labour→Reform +12.2pp | 31.1% |
| Wombwell | Labour 51.2%vs Reform 30.1% | May 2026 Reform 45.3%vs Labour 44.5% | Labour→Reform +10.9pp | 32.8% |
| Worsbrough | Labour 45.5%vs Reform 33.9% | May 2026 Reform 41.7%vs Labour 27.5% | Labour→Reform +12.9pp | 37.3% |
Projection trajectory
PollCheck's projection for Barnsley South at each of the last 60 GB polls. Hover the chart for the underlying poll details.
Who has won Barnsley South 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 | Lab hold | Michael Dugher Barnsley East MP | 47.0% | 16.5% | 18.2% | 11,090 | 56.1% |
| 2015predecessor | Lab hold | Michael Dugher Barnsley East MP | 54.7% | 14.6% | 3.2% | 12,034 | 55.7%-0.4 |
| 2017predecessor | Lab hold | Stephanie Peacock Barnsley East MP | 59.5% | 27.0% | 1.8% | 13,283 | 58.9%+3.2 |
| 2019notional | Labour winner | Stephanie Peacock Barnsley East MP, pre-review boundary | 41.8% | 22.7% | 3.5% | 4,720 | 49.4% |
| 2024 | Lab hold | Stephanie Peacock | 46.7% | 9.3% | 3.3% | 4,748 | 46.2%-3.2 |
Barnsley South was created or substantially redrawn by the 2023 boundary review. Pre-2024 rows below are for the predecessor seat Barnsley East (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 Barnsley South
Five seats with similar demographic profiles to Barnsley South. Politics shown for context.
- ↑Leave69.8 / 69.6vs 53.2
- ↓Graduate20.4 / 22.5vs 33.7
- ↑No quals27.2 / 25.9vs 18.0
- ↑Leave69.8 / 71.7vs 53.2
- ↓Graduate20.4 / 20.9vs 33.7
- ↑No quals27.2 / 25.5vs 18.0
- ↑Leave69.8 / 68.7vs 53.2
- ↓Graduate20.4 / 22.1vs 33.7
- ↑No quals27.2 / 26.8vs 18.0
- ↓Graduate20.4 / 21.2vs 33.7
- ↑Leave69.8 / 66.0vs 53.2
- ↑No quals27.2 / 26.2vs 18.0
- ↑Leave69.8 / 69.3vs 53.2
- ↓Graduate20.4 / 21.4vs 33.7
- ↑No quals27.2 / 26.1vs 18.0
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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