Riding profile

South Derbyshire

UK constituency — England · Mixed · east midlands

The question

South Derbyshire: will Labour lose this seat to Reform UK?

Current forecast

Reform UK

Safe

Probability
100%
Mean margin (pts)
7.6
P(close race)
0%

Projected vote share

Projection by party

  • Reform UK 32.6%
  • Conservative 25.0%
  • Labour 21.6%
  • Green 9.7%
  • Lib Dems 6.4%
  • Other 4.4%

Watch list

The tightest races

Smallest projected margin. Open one for the numbers.

  1. Birmingham ErdingtonReform UK60 %0.5 pt margin
  2. Derby NorthLabour62 %0.5 pt margin
  3. Middlesbrough and Thornaby EastReform UK62 %0.5 pt margin

In context

How this riding stacks up

Reform UK Conservative Labour Green
HereSouth Derbyshire 32.6%25.0%21.6%9.7%
National averageUnited Kingdom 25.4% +7.2 19.3% +5.7 21.8% −0.2 10.8% −1.2

Nationwide averages computed across the 650 riding-level projections (unweighted mean).

Editorial read

South Derbyshire, a mixed constituency in England, elected a member with Labour in the previous cycle, with a 9-point margin. The Vote-Scope model projects Reform UK ahead at 33% vote share, against 25% for the Conservatives, and the probability of a close race is negligible.

Sitting member

Samantha Niblett

Sits with Labour

Since
2024-07-04
Parliament
59th

Previous election · 2024

Won by
Labour
Margin
9.1 pts
Margin shift vs current projection
-1.5 pts

Detailed result · UK 2024

Candidates and votes

Candidate Party Votes % Occupation
Samantha Niblett Elected Labour 17,734 38.8
Heather Wheeler Conservative 13,566 29.7
Job West Reform UK 8,979 19.6
Lucy Care Lib Dems 2,134 4.7
Aruhan Galieva Green 1,941 4.2
Amy Wheelton Other 1,200 2.6
Paul Liversuch Other 183 0.4

Demographics

Who lives here

Population
97,868
Median age
42
Employment rate
79.7%

Data source : ONS mid-2022 population + Jan 2026 labour market

Last model run
Cycle
uk_2029