Riding profile

South Holland and The Deepings

UK constituency — England · Mixed · east midlands

The question

South Holland and The Deepings: who wins this toss-up?

Current forecast

Reform UK

Toss-up

Probability
100%
Mean margin (pts)
3.4
P(close race)
100%

Projected vote share

Projection by party

  • Reform UK 34.8%
  • Conservative 31.4%
  • Labour 10.7%
  • Other 10.1%
  • Green 7.8%
  • Lib Dems 5.0%

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 Other
HereSouth Holland and The Deepings 34.8%31.4%10.7%10.1%
National averageUnited Kingdom 25.4% +9.4 19.3% +12.1 21.8% −11.1 5.0% +5.0

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

Editorial read

South Holland and The Deepings, a mixed constituency in England, elected a member with the Conservatives in the previous cycle, with a 15-point margin. The Vote-Scope model projects Reform UK ahead at 35% vote share, against 31% for the Conservatives, and the race could swing.

Sitting member

Sir John Hayes

Sits with Conservative

Since
1997-05-01
Parliament
59th

Previous election · 2024

Won by
Conservative
Margin
14.9 pts
Margin shift vs current projection
-11.5 pts

Detailed result · UK 2024

Candidates and votes

Candidate Party Votes % Occupation
John Hayes Elected Conservative 17,462 38.0
Matt Swainson Reform UK 10,606 23.1
Paul Hilliar Labour 9,086 19.8
Mark Le Sage Other 5,031 10.9
Jack Braginton Lib Dems 1,945 4.2
Rhys Baker Green 1,800 3.9

Demographics

Who lives here

Population
111,507
Median age
46
Employment rate
80.9%

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

Last model run
Cycle
uk_2029