Constituency view

Portsmouth North

South East, England

Lab gain from Con

Current MP

Current representation

Amanda Martin

Labour

Female

Previous MP: Penny Mordaunt (Conservative) - defeated 2024

Majority780

Turnout59.0%

Electorate70,446

Valid votes41,593

2024 Results

Party breakdown

Labour14,495 - 34.8%

Conservative13,715 - 33.0%

Reform8,501 - 20.4%

Lib Dem3,031 - 7.3%

Green1,851 - 4.5%

Benefits bill · 2025/26

£229,313,360

Estimated yearly spend on the six main working-age and disability benefits paid to residents of this constituency.

£2,215 total benefits bill per resident · 2% below average

Portsmouth North: £2,215
England and Wales average: £2,259

Ranked 261 of 575 constituencies (1 = highest)

Total benefits bill	£229,313,360	276/575
Change over 2 years	+18.5%
Median local wage (2025)	£39,521	+15.7%

Universal Credit£135,190,671
£1,306 per resident · 11,056 households claiming
Assessed LCWRA: 3,491 · 1 in 19 working-age adults
Personal Independence Payment£47,466,164
£459 per resident · 6,434 claimants (+17.7% since Jul 2024)
Psychiatric conditions: 2,507 · 39% of claimants
Enhanced mobility (Motability-eligible): 3,158
Disability Living Allowance£16,400,595
£158 per resident · 2,726 claimants
Housing Benefit£15,704,403
£152 per resident · 1,910 claimants
Carer's Allowance£7,600,944
£73 per resident · 1,756 claimants
Employment Support Allowance£6,950,584
£67 per resident · 1,114 claimants

Ranks are out of England and Wales constituencies, highest first. Source: TaxPayers' Alliance, benefitsdata.uk (estimated from DWP Stat-Xplore claimant counts). England and Wales only. See this seat on benefitsdata.uk ↗

Demographics

Source: ONS Census 2021 (England, Wales, NI) and Scotland's Census 2022, aggregated to 2024 constituency boundaries by the House of Commons Library.

Ethnic composition

2021

White 90.3%White British 85.3%Asian 4.8%Black, African or Caribbean 2.0%Mixed or Multiple ethnic groups 1.9%Other 1.0%

England & Wales (2021)

White 83.0%White British 74.4%Asian 8.6%Black, African or Caribbean 3.7%Mixed or Multiple ethnic groups 2.7%Other 2.0%

2011

White 93.0%White British 90.5%Asian 3.7%Black, African or Caribbean 1.0%Mixed or Multiple ethnic groups 1.8%Other 0.4%

England & Wales (2011)

White 86.0%White British 80.5%Asian 7.5%Black, African or Caribbean 3.3%Mixed or Multiple ethnic groups 2.2%Other 1.0%

2001

White 96.9%White British 95.3%Asian 1.8%Black, African or Caribbean 0.3%Mixed or Multiple ethnic groups 0.8%Other 0.3%

England & Wales (2001)

White 91.3%White British 87.5%Asian 4.8%Black, African or Caribbean 2.2%Mixed or Multiple ethnic groups 1.3%Other 0.4%

1991

White 98.4%White British N/AAsian 0.9%Black, African or Caribbean 0.3%Mixed or Multiple ethnic groups 0.0%Other 0.3%

England & Wales (1991)

White 94.1%White British N/AAsian 3.6%Black, African or Caribbean 1.8%Mixed or Multiple ethnic groups 0.0%Other 0.6%

Year-over-year comparison uses broad ethnic groups.

2011 values are reaggregated from 2011 Output Areas onto 2024 boundaries.

2001 values are reaggregated from 2001 LSOAs onto 2024 boundaries.

1991 values are reaggregated from 1997 parliamentary constituencies onto 2024 boundaries.

Country of birth

Portsmouth North (2021)

UK 88.4%Other EU 5.0%Other countries 6.7%

England & Wales (2021)

UK 84.0%Other EU 6.0%Other countries 10.1%

Portsmouth North (2011)

UK 92.4%Other EU 2.5%Other countries 5.1%

England & Wales (2011)

UK 86.6%Other EU 3.6%Other countries 9.8%

Portsmouth North (2001)

UK 95.1%Other EU 0.9%Other countries 3.9%

England & Wales (2001)

UK 91.1%Other EU 1.4%Other countries 7.5%

Portsmouth North (1991)

UK 96.1%Other EU 1.4%Other countries 2.6%

England & Wales (1991)

UK 92.7%Other EU 2.5%Other countries 4.8%

1991 country of birth data uses the 1991 census's Commonwealth-based classification. Ireland and EU countries are not separately broken out. Regional figures are approximations.

Inset map

Portsmouth North

Loading constituency outline.

Comparison

How this seat compares

Metric	Portsmouth North	National	Difference	Rank
% White	90.3%	83.0%	+7.2pp	346/650
% White British	85.3%	74.4%	+10.8pp	295/632
% Asian	4.8%	8.6%	-3.8pp	288/650
% Black, African or Caribbean	2.0%	3.7%	-1.7pp	240/650
% Mixed or Multiple ethnic groups	1.9%	2.7%	-0.8pp	345/650
% Other ethnic group	1.0%	2.0%	-1.0pp	308/650
% UK-born	88.4%	84.0%	+4.4pp	354/650
% Non-UK-born	11.6%	16.0%	-4.4pp	297/650
% Other EU-born	5.0%	6.0%	-1.0pp	291/650
% Other countries-born	6.7%	10.1%	-3.4pp	299/650
% Christian	42.1%	46.7%	-4.6pp	451/575
% Muslim	2.6%	6.3%	-3.7pp	249/575
% Hindu	0.5%	1.6%	-1.2pp	307/575
% Sikh	0.2%	0.9%	-0.7pp	299/575
% Jewish	0.1%	0.5%	-0.4pp	361/575
% Buddhist	0.4%	0.4%	-0.1pp	233/575
% Other religion	0.5%	0.6%	-0.1pp	241/575
% No religion	48.2%	37.0%	+11.2pp	31/575
% Religion not stated	5.4%	6.0%	-0.6pp	434/575
% Has any religion	46.4%	57.0%	-10.6pp	534/575

Nearby seats

Constituencies around Portsmouth North

Neighbouring constituencies on 2024 boundaries, ordered by the length of the shared border.

Source: ONS Westminster Parliamentary Constituencies (July 2024) Boundaries UK BSC. Seats with a short coastline or none, such as islands, are completed with the closest constituencies by distance.