South East England Polling
Reform UK edges ahead in the South East at 28% with Conservatives just 3 points behind. The Lib Dems at 16% continue to squeeze Blue Wall Tory seats. A genuine three-party battleground.
South East Voting Intention — May 2026
South East Data Table
| Party | South East VI (May 2026) | 2024 GE South East approx. | Change | Direction |
|---|---|---|---|---|
| Reform UK | 28% | ~19% | +9pts | Surging from right |
| Conservatives | 25% | ~34% | −9pts | Losing voters to Reform |
| Labour | 18% | ~25% | −7pts | Collapsing nationally |
| Lib Dems | 16% | ~20% | −4pts | Defending Blue Wall gains |
The Blue Wall: Lib Dem vs. Conservative
The Blue Wall refers to a belt of traditionally safe Conservative seats in the South East and beyond — typically affluent, educated, pro-Remain constituencies in commuter belt towns and market towns. The Liberal Democrats successfully targeted and won large numbers of these seats in the 2024 General Election, with seats like Guildford, Horsham, Winchester and Tunbridge Wells all changing hands.
In 2026, the Lib Dems at 16% in the South East face a different challenge: defending these seats while the Conservatives attempt to recover. However, the Conservative vote is being squeezed simultaneously by Reform on the right. With Reform at 28% and the Conservatives at 25%, many South East seats could see a fragmented vote that advantages whoever is second to the Lib Dems or Labour incumbent.
Conservative Dilemma
The Conservatives face an impossible choice in the South East: move right to win back Reform voters and risk losing more Blue Wall seats to the Lib Dems, or hold the centre and cede post-industrial seats to Reform. At 25%, they are under pressure from both flanks.
Lib Dem Strength
The Lib Dems at 16% in the South East are defending seats with incumbency advantage — a significant asset under FPTP. Even at slightly reduced polling levels, incumbents with good local reputations can hold seats that national polling would suggest are marginals.
Key South East Constituencies
| Constituency | 2024 Winner | Key Dynamic | 2029 Risk |
|---|---|---|---|
| Guildford | Lib Dems (gained 2024) | Blue Wall capture | Con attempted recovery vs. Lib Dem incumbency |
| Horsham | Lib Dems (gained 2024) | Blue Wall capture | Con recovery attempt, Reform splitting right vote |
| Winchester | Lib Dems (gained 2024) | Blue Wall capture | Three-way marginal: Lib Dem, Con, Labour |
| Tunbridge Wells | Lib Dems (gained 2024) | Affluent, pro-Remain | Con recovery possible if Reform vote consolidates |
| Folkestone & Hythe | Con | Strong Reform area | Reform challenging, Lib Dems also competitive |
| Hastings & Rye | Labour (gained 2024) | Coastal, Reform surge | Reform direct challenge to Labour incumbent |
Frequently Asked Questions
Who leads South East England polling in 2026?
Reform UK leads the South East at 28% in May 2026, narrowly ahead of the Conservatives at 25%, Labour at 18% and the Liberal Democrats at 16%.
What is the Blue Wall?
The Blue Wall refers to a belt of traditionally safe Conservative seats across the South East and beyond, typically in affluent commuter belt and market town constituencies. The Liberal Democrats successfully targeted and won many of these seats in 2024 and continue to defend them against a Reform-squeezed Conservative vote.
Can the Conservatives hold the South East against Reform UK?
The Conservatives trail Reform UK in the South East 25% to 28%. In many South East constituencies, the split between Conservative and Reform voters allows either Labour or the Lib Dems to come through the middle. The Conservatives face a difficult strategic choice: move right to recapture Reform voters or hold the centre to defend Blue Wall seats.
Which South East seats are the Lib Dems targeting?
At 16% in the South East, the Lib Dems are defending seats won in 2024 such as Guildford, Winchester, Horsham and Tunbridge Wells. With incumbency advantage, they remain competitive even at slightly lower national polling levels. They may also target additional seats where the Conservative vote continues to fragment.