Constituency profile

South Derbyshire

East Midlands · County constituency · South Derbyshire borough

Samantha Niblett MP
Sitting MP

Samantha Niblett

Labour

First elected July 2024

Current PollCheck projection

Region & type
East Midlands
County constituency, South Derbyshire council
Last 5 GE winners
CCCCL
Conservative 4/5, Labour 1/5
EU referendum 2016
60.4% Leave
UK average 51.9%; +8.5pp above mean
Current outlook
Labour +2.9pp
vs Reform UK 28.3%
MidlandsStrong Leave area

About the South Derbyshire constituency

South Derbyshire is a county constituency in the East Midlands. The sitting MP is Samantha Niblett (Labour), first elected in July 2024. At the 2024 general election, Labour won with 38.8% to 29.7% for the Conservatives, a majority of 4,168 votes on a 62.0% turnout. PollCheck's current projection, at the seven-poll average, has Labour on 31.2% and Reform UK on 28.3%, a margin of 2.9 points.

Who lives in South Derbyshire? Constituency demographics

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

Leave vote 2016
60.4%
UK average ~52%
Degree or above
31.1%
UK average ~34%
No qualifications
16.6%
UK average ~18%
Owner-occupied
74.3%
UK average ~63%
Renting (social + private)
24.8%
UK average ~36%
Median age
42.4
UK median ~40
Age 65+
23.2%
UK average ~19%
Age 18-34
28.1%
UK average ~28%

How did South Derbyshire 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 gain from Con · majority 4,168 votes (9.1pp) · turnout 62.0%

Current projection

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

Map of South Derbyshire

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 ›

Council layer (not Westminster)

South Derbyshire within South Derbyshire

South Derbyshire sits entirely within South Derbyshire Council. South Derbyshire 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
South Derbyshire
54 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
6 Nov 2025Seales
South Derbyshire
Ind GAIN from LabOther 56% Ref 24% Con 8%
9 May 2024Melbourne
South Derbyshire
Con HOLD—

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
AstonLabour 37.1%vs Conservative 33.4%2023 Conservative 53.3%vs Labour 46.7%-29.2%
Church GresleyLabour 40.0%vs Conservative 25.5%2023 Labour 62.6%vs Conservative 37.4%-21.8%
EtwallConservative 34.4%vs Labour 32.5%2023 Conservative 62.9%vs Labour 37.1%-32.4%
LintonLabour 38.6%vs Conservative 30.1%2023 Labour 54.9%vs Conservative 45.1%-27.7%
MelbourneLabour 41.9%vs Conservative 34.2%2023 Conservative 42.1%vs Labour 34.7%-52.6%
MidwayLabour 40.2%vs Conservative 27.1%2023 Labour 57.7%vs Conservative 42.3%-22.4%
Newhall and StantonLabour 42.3%vs Conservative 25.0%2023 Labour 67.9%vs Conservative 32.1%-21.0%
ReptonConservative 37.1%vs Labour 30.9%2023 Conservative 59.9%vs Labour 29.6%-39.6%
SealesLabour 35.0%vs Conservative 31.2%2023 Independent 46.6%vs Conservative 29.4%-48.2%
StensonLabour 48.0%vs Conservative 21.9%2023 Labour 76.3%vs Conservative 23.7%-29.9%
SwadlincoteLabour 40.4%vs Conservative 25.3%2023 Labour 62.3%vs Conservative 37.7%-20.4%
Willington and FindernLabour 37.1%vs Conservative 34.2%2023 Labour 51.4%vs Conservative 48.6%-32.9%
WoodvilleLabour 40.5%vs Conservative 25.9%2023 Labour 58.0%vs Conservative 42.0%-19.8%

Projection trajectory

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

Who has won South Derbyshire 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
2010Con gain from LabHeather Wheeler31.4%45.5%15.9%2.4% UKIP-4.9%7,12871.4%
2015Con holdHeather Wheeler26.8%49.4%3.7%17.7% UKIP2.4%-11,47168.7%-2.7
2017Con holdHeather Wheeler36.0%58.7%3.6%-1.7%-11,97068.9%+0.2
2019notionalConservative winnerHeather Wheeler 2019 MP, pre-review boundary27.2%62.1%7.3%-3.3%0.1%16,48366.3%-2.6
2024Lab gain from ConSamantha Niblett38.8%29.7%4.7%19.6% Ref4.2%3.0%4,16862.0%-4.3

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

Constituencies most like South Derbyshire

Five seats with similar demographic profiles to South Derbyshire. 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.

If you spot a data issue, please let us know.