Who is the MP for Harpenden and Berkhamsted?

Victoria Collins (Liberal Democrat) is the MP for Harpenden and Berkhamsted. They were first elected in July 2024.

Who won Harpenden and Berkhamsted at the 2024 general election?

The 2024 general election in Harpenden and Berkhamsted was won by Liberal Democrats with 50.2% of the vote, ahead of Conservative on 30.5%.

Who is projected to win the next election in Harpenden and Berkhamsted?

PollCheck's current projection has Liberal Democrats on 46.3% and Conservative on 20.7% if a general election were held today. The projection updates as new polling is added.

What council is Harpenden and Berkhamsted in?

Harpenden and Berkhamsted crosses multiple council boundaries: Dacorum (50%), St Albans (50%). Westminster constituencies and local councils are separate units.

What is the demographic profile of Harpenden and Berkhamsted?

Harpenden and Berkhamsted is in East of England. The seat is closely divided on Brexit (Leave vote estimated at 47.2% in 2016). Around 51.8% of residents have a degree, a median age of 44, and 75.3% of homes are owner-occupied (Census 2021).

When was the last general election in Harpenden and Berkhamsted?

The most recent general election was held on 4 July 2024. In Harpenden and Berkhamsted, Liberal Democrats won with 50.2% of the vote. The next general election must be held by August 2029.

Which parties have won Harpenden and Berkhamsted in recent elections?

Recent general election winners in Harpenden and Berkhamsted: 2010 Conservative, 2015 Conservative, 2017 Conservative, 2019 Conservative, 2024 Liberal Democrats.

Constituency profile

Harpenden and Berkhamsted

East of England · County constituency

Sitting MP

Victoria Collins

Liberal Democrat

First elected July 2024

Current PollCheck projection

Region & type

East of England

County constituency

Last 5 GE winners

CCCCLD

Conservative 4/5, Liberal Democrats 1/5

EU referendum 2016

47.2% Leave

UK average 51.9%; -4.7pp below mean

Current outlook

Liberal Democrats +25.6pp

vs Conservative 20.7%

SouthernBrexit-marginalGraduate-heavy

Who lives in Harpenden and Berkhamsted? Constituency demographics

From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.

Leave vote 2016

47.2%

UK average ~52%

Degree or above

51.8%

UK average ~34%

No qualifications

9.9%

UK average ~18%

Owner-occupied

75.3%

UK average ~63%

Renting (social + private)

24.2%

UK average ~36%

Median age

44.5

UK median ~40

Age 65+

24.8%

UK average ~19%

Age 18-34

22.0%

UK average ~28%

How did Harpenden and Berkhamsted vote in 2024 and how would it vote now?

2024 vote shares from the HoC Library. Current projection is at the 7-poll average.

2024 general election

LD gain from Con · majority 10,708 votes (19.7pp) · turnout 75.2%

Current projection

If a general election were held today, at current poll average

Map of Harpenden and Berkhamsted

Switch between ward-level 2024 election winners and a demographic view. Ward winners are Britain Elects' / New Statesman modelled estimates with an average ~4pp margin of error per ward. The demographic view splits the seat into small neighbourhoods (around 1,500 residents each, from the 2021 Census). Hover any area for detail.

Council layer (not Westminster)

Harpenden and Berkhamsted within Dacorum and St Albans

Harpenden and Berkhamsted crosses multiple council boundaries: Dacorum (50%), St Albans (50%). The figures below come from the council elections held on Thursday 7 May 2026 in each constituent council.

Council overlap

Council	Share of seat	Projection
Dacorum 30 LSOAs	50%	—
St Albans 30 LSOAs	50%	View projection ›

Most recent council ward results

Latest council winner per ward. Where May 2026 elections happened, those are shown; otherwise the most recent year on the ward’s pre-2026 boundary (via DCLEAPIL, 2014-2024). The "Shift since GE2024" column is only computed for May 2026 results - earlier council votes pre-date the GE, so no directional shift is shown.

Loading ward results...

Ward	GE2024 winner	Latest council winner	Shift since GE2024	Turnout

Projection trajectory

PollCheck's projection for Harpenden and Berkhamsted at each of the last 60 GB polls. Hover the chart for the underlying poll details.

Who has won Harpenden and Berkhamsted at past general elections?

2024 result is on current boundaries. The 2019 row is the UK Parliament's notional recalculation onto the 2024 boundaries (directly comparable to 2024). The 2010, 2015 and 2017 rows are on the boundaries in force at the time and aren't directly comparable.

Year	Result	MP	Lab	Con	LD	Right (Ref/UKIP)	Green	Other	Majority	Turnout
2010predecessor	Con hold	Peter Lilley Hitchin and Harpenden MP	13.6%	54.6%	26.7%	3.0% UKIP	1.5%	0.7%	15,271	74.1%
2015predecessor	Con hold	Peter Lilley Hitchin and Harpenden MP	20.6%	56.9%	8.1%	8.9% UKIP	5.5%	-	20,055	68.9%
2017predecessor	Con hold	Bim Afolami Hitchin and Harpenden MP	32.6%	53.1%	10.6%	-	2.3%	1.5%	12,031	77.4%
2019notional	Conservative winner	Bim Afolami Hitchin and Harpenden MP, pre-review boundary	10.6%	52.3%	25.3%	-	1.6%	10.2%	15,044	77.8%
2024	LD gain from Con	Victoria Collins	7.5%	30.5%	50.2%	7.8% Ref	3.6%	0.4%	10,708	75.2%

Harpenden and Berkhamsted was created or substantially redrawn by the 2023 boundary review. Pre-2024 rows below are for the predecessor seat Hitchin and Harpenden (the seat that covered most of this area), so vote shares and majorities aren’t directly comparable to the post-2024 figures.

Constituencies most like Harpenden and Berkhamsted

Five seats with similar demographic profiles to Harpenden and Berkhamsted. Politics shown for context.

What would change this seat?

Move the sliders to set national vote shares. The per-seat projection updates live. Reset returns to the current 7-poll average.

Sources

2024 general election results · UK Parliament Election Results portal and House of Commons Library briefing CBP-10009.
Notional 2019 results on 2024 boundaries · UK Parliament Election Results portal. Recalculated by Parliament; carries assumptions about how 2019 voters would have distributed across the redrawn boundaries.
Historic general election results (2010-2017) · House of Commons Library historic results files (on the boundaries in force at the time).
Ward-level GE2024 estimates · Britain Elects / New Statesman - article by Ben Walker, underlying spreadsheet. Modelled from constituency totals; average ~4pp per-ward MoE.
May 2026 council ward results · Democracy Club via PollCheck's locals 2026 dataset.
Earlier council ward results (2014-2024) · DCLEAPIL v1.0 (Jason Leman, drawing on Andrew Teale's LEAP dataset and Democracy Club).
Demographics · ONS Census 2021 (England and Wales), aggregated to constituency level using the ONS LSOA21 -> PCON24 best-fit lookup.
EU referendum 2016 estimates · Constituency-level Leave vote estimates (Hanretty 2017 method).
MP details and Cabinet roles · UK Parliament Members API. MP photos are fetched live from the same source.
Boundary geometry and lookups · ONS Open Geography Portal (PCON24 boundaries, LSOA21 boundaries, LSOA21-WD24-LAD24 best-fit lookup).
Current projection and trajectory · PollCheck's demographic swingometer applied to the rolling 7-poll average from aggregated GB polls. Not a true MRP - vote-share movements are applied through per-constituency sensitivity multipliers derived from demographic regressions.

If you spot a data issue, please let us know.