Cardiff North
Wales · Borough constituency
About the Cardiff North constituency
Cardiff North is a borough constituency in Wales, covering most or all of Cardiff. The sitting MP is Anna McMorrin (Labour), first elected in June 2017.
At the 2024 general election, Labour won Cardiff North with 43.9% of the vote, ahead of the Conservatives on 20.3%, a majority of 11,207 votes. Turnout was 66.4%.
If a general election were held today, PollCheck's projection at the current seven-poll average has Labour on 26.4% and Plaid Cymru on 21.3% in Cardiff North, a margin of 5.1 points. The projection updates automatically as new polls are added.
Demographically, Cardiff North is a Remain-leaning area (an estimated 39.1% voted Leave in 2016). About 44.4% of residents hold a degree, 73.8% of homes are owner-occupied, and the seat has a median age of about 41 (2021 Census).
Across the last 5 general elections on record, the seat has been won by Labour 3 times, the Conservatives 2 times (earlier years may be on predecessor boundaries).
Who lives in Cardiff North? Constituency demographics
From the 2021 Census and 2016 EU referendum estimates. Constituency-level data on 2024 boundaries.
How did Cardiff North 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
Current projection
Map of Cardiff North
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.
How Cardiff North voted at the Senedd election (7 May 2026)
Cardiff North sits almost entirely within the Senedd constituency of Caerdydd Ffynnon Taf. Senedd elections use a closed-list proportional system; each Senedd seat returns six members.
| Senedd constituency | Share of Cardiff North | Winner | Runner-up | Seats (6 per constituency) |
|---|---|---|---|---|
| Caerdydd Ffynnon Taf | 96% | Plaid Cymru 37.0% | Reform UK 19.6% | 3 Plaid Cymru, 1 Reform UK, 1 Labour, 1 Green |
| Pontypridd Cynon Merthyr | 2% | Plaid Cymru 39.5% | Reform UK 30.6% | 3 Plaid Cymru, 2 Reform UK, 1 Labour |
Senedd 2026 results from official declarations. Overlap percentages are area-based using the post-2024 Westminster boundary against the new 16-seat Senedd boundary.
Cardiff North within Cardiff
The Westminster constituency of Cardiff North sits almost entirely within Cardiff Council. Local council elections are a separate ballot from Westminster general elections - English councils rotate their election cycles and Cardiff was not due to vote in 2026, so the figures below show the most recent council ward results available.
Council overlap
| Council | Share of seat |
|---|---|
| Cardiff | 97% |
| Rhondda Cynon Taf | 3% |
Most recent council ward results
Latest council winner per ward. Where the council held a May 2026 election, those results are shown; otherwise we show the most recent available ward result (via DCLEAPIL, 2014-2024), or, where the seat was uncontested at the last election, the current sitting councillor from OpenCouncilData. 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.
| Ward | GE2024 winner | Latest council winner | Shift since GE2024 | Turnout |
|---|
Projection trajectory
PollCheck's projection for Cardiff North at each of the last 60 GB polls. Hover the chart for the underlying poll details.
Who has won Cardiff North 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 | Majority | Turnout |
|---|---|---|---|---|---|---|---|
| 2010 | Con gain from Lab | Jonathan Evans | 37.1% | 37.5% | 18.3% | 194 | 72.7% |
| 2015 | Con hold | Craig Williams | 38.3% | 42.4% | 3.8% | 2,137 | 76.1%+3.4 |
| 2017 | Lab gain from Con | Anna McMorrin | 50.1% | 42.1% | 3.3% | 4,174 | 77.4%+1.3 |
| 2019notional | Labour winner | Anna McMorrin 2019 MP, pre-review boundary | 49.6% | 35.7% | 6.5% | 7,579 | 76.9%-0.5 |
| 2024 | Lab hold | Anna McMorrin | 43.9% | 20.3% | 6.7% | 11,207 | 66.4%-10.5 |
Earlier years are on pre-2024 boundaries; comparable results on the new boundary will be added when sourced.
Constituencies most like Cardiff North
Five seats with similar demographic profiles to Cardiff North. Politics shown for context.
- ↑Owner-occupied73.8 / 75.4vs 61.9
- ↓Leave39.1 / 41.5vs 53.2
- ↑Graduate44.4 / 46.2vs 33.7
- ↓Leave39.1 / 35.4vs 53.2
- ↑Owner-occupied73.8 / 74.4vs 61.9
- ↑Graduate44.4 / 42.9vs 33.7
- ↑Owner-occupied73.8 / 75.5vs 61.9
- ↑Graduate44.4 / 47.8vs 33.7
- ↓Leave39.1 / 42.7vs 53.2
- ↑Owner-occupied73.8 / 72.5vs 61.9
- ↑Graduate44.4 / 42.9vs 33.7
- ↓Leave39.1 / 45.0vs 53.2
- ↓Leave39.1 / 41.0vs 53.2
- ↑Owner-occupied73.8 / 79.4vs 61.9
- ↑Graduate44.4 / 51.6vs 33.7
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
- 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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