Constituency profile

Bicester and Woodstock

South East · County constituency

Calum Miller MP
Sitting MP

Calum Miller

Liberal Democrat

First elected July 2024

Current PollCheck projection

Region & type
South East
County constituency
Last 5 GE winners
CCCCLD
Conservative 4/5, Liberal Democrats 1/5
EU referendum 2016
44.5% Leave
UK average 51.9%; -7.4pp below mean
Current outlook
Liberal Democrats +10.0pp
vs Reform UK 23.0%
SouthernRemain-leaning

About the Bicester and Woodstock constituency

Bicester and Woodstock is a county constituency in the South East. The sitting MP is Calum Miller (Liberal Democrat), first elected in July 2024. At the 2024 general election, the Liberal Democrats won with 38.7% to 28.8% for the Conservatives, a majority of 4,958 votes on a 67.5% turnout. PollCheck's current projection, at the seven-poll average, has the Liberal Democrats on 33.0% and Reform UK on 23.0%, a margin of 10.0 points.

Who lives in Bicester and Woodstock? Constituency demographics

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

Leave vote 2016
44.5%
UK average ~52%
Degree or above
38.9%
UK average ~34%
No qualifications
14.1%
UK average ~18%
Owner-occupied
67.9%
UK average ~63%
Renting (social + private)
30.0%
UK average ~36%
Median age
41.6
UK median ~40
Age 65+
22.3%
UK average ~19%
Age 18-34
28.0%
UK average ~28%

How did Bicester and Woodstock 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 4,958 votes (9.9pp) · turnout 67.5%

Current projection

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

Map of Bicester and Woodstock

Switch between GE2024 ward winners (modelled estimates, ~4pp average error) and a demographic view from the 2021 Census. Hover any area for detail. How the map is built ›

Council layer (not Westminster)

Bicester and Woodstock within Cherwell and West Oxfordshire

Bicester and Woodstock crosses council boundaries: Cherwell (78%), West Oxfordshire (22%). The figures below are from the 7 May 2026 council elections where held, otherwise the most recent available ward result. About this layer ›

Council overlap

CouncilShare of seatProjection
Cherwell
50 LSOAs
78%View projection ›
West Oxfordshire
14 LSOAs
22%View projection ›

Recent council by-elections

Council ward by-elections held inside this seat, most recent first. The result column shows which party won; the share column shows the top three parties’ vote shares on the day.

DateWardResultTop 3 vote shares
16 Jul 2026Kidlington West
Cherwell
LD HOLDLD 59% Ref 19% Con 13%

Most recent council ward results

Latest council winner per ward - May 2026 results where the council voted, otherwise the most recent available result. How this table is sourced ›

Ward GE2024 winner Latest council winner Shift since GE2024 Turnout
Bicester EastLib Dem 33.1%vs Conservative 28.6%May 2026 Lib Dem 35.2%vs Reform 27.6%
Lib Dem share
+2.1pp
40.9%
Bicester North and CaversfieldLib Dem 32.1%vs Conservative 29.3%May 2026 Lib Dem 36.0%vs Conservative 25.1%
Lib Dem share
+3.9pp
41.3%
Bicester South and AmbrosdenLib Dem 41.7%vs Conservative 25.9%May 2026 Lib Dem 41.2%vs Reform 21.6%
Lib Dem share
-0.5pp
36.8%
Bicester WestLib Dem 30.3%vs Conservative 28.4%May 2026 Reform 30.8%vs Lib Dem 23.1%
Lib Dem→Reform
+11.7pp
41.6%
Eynsham and CassingtonLib Dem 48.2%vs Conservative 25.5%May 2026 Lib Dem 46.5%vs Reform 18.7%
Lib Dem share
-1.8pp
-
Freeland and HanboroughLib Dem 37.7%vs Conservative 31.9%May 2026 Conservative 39.7%vs Lib Dem 38.6%
Lib Dem→Conservative
+3.5pp
-
Fringford and HeyfordsLib Dem 36.1%vs Conservative 33.5%May 2026 Lib Dem 39.5%vs Reform 25.2%
Lib Dem share
+3.4pp
44.7%
Kidlington EastLib Dem 33.6%vs Conservative 29.6%May 2026 Green 35.2%vs Reform 24.9%
Lib Dem→Green
+22.2pp
42.2%
Kidlington WestLib Dem 45.4%vs Conservative 25.8%May 2026 Lib Dem 45.1%vs Reform 23.2%
Lib Dem share
-0.3pp
44.7%
Launton and OtmoorLib Dem 39.6%vs Conservative 29.1%May 2026 Lib Dem 38.6%vs Reform 27.1%
Lib Dem share
-1.0pp
48.8%
North LeighConservative 37.9%vs Lib Dem 35.3%2024 Conservative 54.1%vs Lib Dem 33.7%--
Stonesfield and TackleyLib Dem 44.9%vs Conservative 28.4%2024 Green 33.6%vs Lib Dem 32.0%--
Woodstock and BladonLib Dem 47.0%vs Conservative 26.8%May 2026 Lib Dem 41.9%vs Conservative 25.1%
Lib Dem share
-5.1pp
-

Projection trajectory

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

Who has won Bicester and Woodstock at past general elections?

2024 and notional 2019 rows are on current boundaries; 2010-2017 rows are on the boundaries in force at the time. More on boundaries ›

Year Result MP Lab Con LD Right (Ref/UKIP) Green Other Majority Turnout
2010predecessorCon holdTony Baldry Banbury MP19.2%52.8%20.4%5.0% UKIP1.7%0.9%18,22766.7%
2015predecessorCon holdVictoria Prentis Banbury MP21.3%53.0%5.9%13.9% UKIP4.6%1.3%18,39567.1%+0.4
2017predecessorCon holdVictoria Prentis Banbury MP34.1%54.2%5.6%2.6% UKIP2.0%1.5%12,39973.4%+6.3
2019notionalConservative winnerVictoria Prentis Banbury MP, pre-review boundary16.9%53.9%26.6%-2.4%0.2%14,20573.9%
2024LD gain from ConCalum Miller16.4%28.8%38.7%10.8% Ref4.8%0.6%4,95867.5%-6.4

Bicester and Woodstock was created or substantially redrawn by the 2023 boundary review. Pre-2024 rows below are for the predecessor seat Banbury (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 Bicester and Woodstock

Five seats with similar demographic profiles to Bicester and Woodstock. 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.

Related

Sources

Every figure on this page is computed from the sources below. Read the full methodology ›

Show full source list
  • 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.

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