# Portsmouth North

The south west of the South East. About 103,518 people (mid-2024 estimate) in 27 square kilometres.

Amanda Martin has been the Labour MP for Portsmouth North since July 2024. They won by 780 votes on a 59.0% turnout.

Constituency. Code E14001431. In: [South East](https://openindex.co.uk/south-east)

## MP and the 2024 result

Amanda Martin has been the Labour MP for Portsmouth North since July 2024.
They won by 780 votes on a 59.0% turnout.

MP: [Amanda Martin](https://members.parliament.uk/member/5294) (Labour).

### General election, 4 July 2024: Portsmouth North

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Amanda Martin (elected) | Labour | 14,495 | 34.8% |
| Penny Mordaunt | Conservative | 13,715 | 33.0% |
| Melvyn Todd | Reform UK | 8,501 | 20.4% |
| Simon Dodd | Liberal Democrat | 3,031 | 7.3% |
| Duncan Robinson | Green Party | 1,851 | 4.5% |

Electorate 70,446. Turnout 59.0%. Majority 780 (1.9%). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: House of Commons Library, UK Parliament election results. https://electionresults.parliament.uk/elections/3711

MP as of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Key figures

- **Majority, 2024 general election: 1.9%** (July 2024). The winner in Portsmouth North had a majority of 1.9% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 40th smallest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/portsmouth-north#f-ge2024-majority
- **Turnout, 2024 general election: 59.0%** (July 2024). Turnout in Portsmouth North at the general election on 4 July 2024 was 59.0% (House of Commons Library). Joint 285th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/portsmouth-north#f-ge2024-turnout
- **Population: 100,139** (2021). Portsmouth North had 100,139 usual residents at the census (ONS Census 2021). 303rd least populated of 650. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/constituency/portsmouth-north#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in Portsmouth North live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/constituency/portsmouth-north#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=E14001431) (Worked out by Open Index · 2022): About 100% of people in Portsmouth North live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Average house price by council](https://openindex.co.uk/map/house-prices?place=E14001431) (UK House Price Index · July 2026): Published for whole councils, so the map colours all of Portsmouth, where most of this constituency lies. The outline is Portsmouth North.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=E14001431) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Portsmouth, where most of this constituency lies. The outline is Portsmouth North.
- [Population by constituency](https://openindex.co.uk/map/population?place=E14001431) (Census 2021, England and Wales): Portsmouth North had 100,139 usual residents at the census.

## How Portsmouth North compares

Each constituency against every other constituency the measure covers.

| Measure | Portsmouth North | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 1.9% | joint 40th smallest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 59.0% | joint 285th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 100,139 | 303rd least populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Portsmouth North?

Portsmouth North had 100,139 usual residents at the census.
Portsmouth North is the 303rd least populated of 650 in the UK.

## Figures for the whole of Portsmouth

Most of Portsmouth North lies in Portsmouth. These figures are published for the whole of Portsmouth, not for constituencies, so they describe the council and not Portsmouth North itself. [See Portsmouth](https://openindex.co.uk/portsmouth)

- **Average house price: £251,220** (July 2026). Portsmouth’s average house price was £251,220 in July 2026 (HM Land Registry). Up 1.3% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £36,022** (2025). Full-time workers living in Portsmouth earned a median of £36,022 in 2025 (ONS earnings survey). 95th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 7.0×** (2025). A home in Portsmouth costs 7.0 times local full-time pay. Joint 158th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 16 September 2026.
- **Deprivation score: 26.4** (2025). Portsmouth has a deprivation score of 26.4 in the English Indices of Deprivation 2025 (MHCLG). 64th most deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Portsmouth North in brief

The winner in Portsmouth North had a majority of 1.9% of valid votes at the general election on 4 July 2024.
Turnout in Portsmouth North at the general election on 4 July 2024 was 59.0%.
Portsmouth North had 100,139 usual residents at the census.
About 100% of people in Portsmouth North live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: E14001431
- Council: [Portsmouth †](https://openindex.co.uk/portsmouth)
- Region: [South East](https://openindex.co.uk/south-east)
- Nation: [England](https://openindex.co.uk/england)
- Area: 26.98 km²
- People, mid-2024: 103,518*
- Wards: 7
- Middle areas: 12
- Neighbourhoods: 63
- Output areas: 308

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the council this constituency mostly lies in. Its edges do not follow it.

## Next door

[Fareham and Waterlooville](https://openindex.co.uk/constituency/fareham-and-waterlooville), [Portsmouth South](https://openindex.co.uk/constituency/portsmouth-south), [Havant](https://openindex.co.uk/constituency/havant)

## Similar places

Constituencies with the closest mix of age and density. [Romford](https://openindex.co.uk/constituency/romford), [Derby North](https://openindex.co.uk/constituency/derby-north), [Sheffield Heeley](https://openindex.co.uk/constituency/sheffield-heeley), [Wolverhampton North East](https://openindex.co.uk/constituency/wolverhampton-north-east), [Norwich South](https://openindex.co.uk/constituency/norwich-south), [Newcastle upon Tyne North](https://openindex.co.uk/constituency/newcastle-upon-tyne-north).

## Latest updates for Portsmouth North

- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.
- GP practices updated: NHS England · Oct 2026.
- Schools updated: Department for Education · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/E14001431

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/portsmouth-north, or to one figure with its anchor, https://openindex.co.uk/constituency/portsmouth-north#f-ge2024-majority.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.8, https://doi.org/10.5281/zenodo.23508850. The HTML page: https://openindex.co.uk/constituency/portsmouth-north