Monday, November 2, 2026
U.S. midterms in 1 day

Hertsmere

Westminster constituency · England · East of England

Forecast of November 2, 2026

Our forecast gives the Conservatives a more than 99% chance of winning, with an average lead of 18.5 points.

Safe seat. Chance of a final gap under 5 points: under 1%.

Projected vote share

Projection by party

  • Conservative 40.7%
  • Reform UK 21.3%
  • Labour 20.9%
  • Green 7.7%
  • Lib Dems 6.3%
  • Other 2.8%

Thin vertical mark: 2024 result.

Compared with the average

Conservative Reform UK Labour Green
Hertsmere 40.7%21.3%20.9%7.7%
National averageUnited Kingdom 20.0%+20.6 22.3%−0.9 26.5%−5.6 9.7%−1.9

Simple average of the 650 ridings, not weighted by population.

Local profile

Population106,213
Median age41
Employment rate70.2%

Source: Office for National Statistics: mid-2022 population, January 2026 labour market

Current member

Sir Oliver Dowden · Conservative

In office since May 7, 2015. 59th Parliament.

Previous election (2024)

The Conservatives won by 16.7 points.

Our current projection: the Conservatives ahead by 18.5 points.

Candidates and votes in 2024

Candidate Party Votes %
Oliver Dowden Elected Conservative 21,451 44.7
Josh Tapper Labour 13,459 28.0
Darren Selkus Reform UK 6,584 13.7
Emma Matanle Lib Dems 3,710 7.7
John Humphries Green 2,267 4.7
Ray Bolster Other 536 1.1

Nearby ridings

Party ahead and how sure the projection is.

Watch list

The tightest races

The smallest projected gaps between the top two.

  1. Inverness, Skye and West Ross-shireSNP76%1.2-point gap
  2. Bury St Edmunds and StowmarketReform UK46%1.4-point gap
  3. Romsey and Southampton NorthConservative63%1.4-point gap
Forecast updated