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Hertsmere

England PCON E14001284

Location map showing the Hertsmere constituency.

Sitting MP

Sir Oliver Dowden
Sir Oliver Dowden Conservative Elected 2015-05-07

2024 General Election result

Conservative Winner
44.7% Winning share
16.6pp Majority over Labour
48,007 Valid votes cast

Vote share by party

  • Conservative 44.7%
  • Labour 28.0%
  • Reform UK 13.7%
  • Liberal Democrats 7.7%
  • Green Party 4.7%
  • Independent 1.1%

Personal Independence Payment

5,225 PIP claimants ยท Jan 2026

Source: DWP Stat-Xplore, PIP Monthly New. Constituency totals only. No demographic breakdown is published at constituency level.

Demographic snapshot

Aggregated up from the 2 of 2 constituent local authority profiles, weighted by share of constituency postcodes and 2021 population. Indicative only: a constituency that takes the dense core of an LA but a small share of its postcodes will be misweighted. For direct Census observations, use the local-authority pages linked below.

63.4% White British 2021 (derived)
23.8% -39.6pp White British 2051 projected (derived)
22.8% Foreign-born 2021 (derived)
58.7% Foreign-born 2051 projected (derived)

Method: each constituent local authority contributes the product of its postcode share within the constituency and its 2021 population. Underlying figures from Census 2021 (ONS custom dataset) and the Hamilton-Perry projection model. See the methodology page for the projection's limitations and validation.

Local authorities in this constituency

By share of postcodes from the constituency that fall in each LA.

Hertsmere 93.5% of postcodes Welwyn Hatfield 6.5% of postcodes