Romsey and Southampton North

Parliament accepted the Boundary Commission's Fifth Periodic Review of Westminster constituencies which created this constituency for the 2010 general election primarily as an extended Romsey constituency^[3].

Map of 2010-2024 boundaries

2010–2024: Romsey and Southampton North was formed from electoral wards:

• Bassett, and Swaythling in the City of Southampton; and
• Abbey, Ampfield and Braishfield, Blackwater, Broughton and Stockbridge, Chilworth, Nursling and Rownhams, Cupernham, Dun Valley, Harewood, Kings Somborne and Michelmersh, North Baddesley, Over Wallop, Romsey Extra, Tadburn, and Valley Park in the Borough of Test Valley^[4]

2024–present: Further to the 2023 Periodic Review of Westminster constituencies which became effective for the 2024 general election, the constituency is composed of the following (as they existed on 1 December 2020):

• The City of Southampton wards of: Bassett; Swaythling.
• The Borough of Test Valley wards of: Ampfield & Braishfield; Anna; Shipton Bellinger; Blackwater; Charlton & the Pentons; Chilworth, Nursling & Rownhams; Harewood; Mid Test; North Baddesley; Romsey Abbey; Romsey Cupernham; Romsey Tadburn.^[5]

The boundaries were extended northwards to included rural areas to the south and west of Andover, transferred from North West Hampshire. The Valley Park ward was to be transferred to Eastleigh.

The area includes Stockbridge, which was a rotten borough until its abolition under the Reform Act 1832.

The constituency takes in the bulk of a more affluent and older-population local government district with a fraction of a contrasting district: the net result is a working population whose income is close to the national average and lower than average reliance upon social housing.^[6] At the end of 2012, the unemployment rate in the constituency stood as 1.5% of the population claiming Jobseeker's Allowance, compared to the regional average of 2.4%.^[7] The borough contributing to the bulk of the seat has a low 13.5% of its population without a car, 18.4% of the population without qualifications and a high 30.5% with Level 4 qualifications or above. In terms of tenure 70.4% of homes are owned outright or on a mortgage as at the 2011 census in Test Valley district.^[8]

The constituency's boundaries were altered for the 2024 general election following the 2023 Periodic Review, which added several rural wards from North West Hampshire. In this election, Caroline Nokes was returned as the Member of Parliament with 19,893 votes. The Liberal Democrat candidate, Geoff Cooper, received 17,702 votes, while Paul Barrett of Reform UK secured 5,716 votes. These results established a majority of 2,191 votes. This represented a change from the 2019 election, where the seat was held with a wider margin of 10,872 votes.^[9]

Romsey prior to 2010

• List of parliamentary constituencies in Hampshire
• List of parliamentary constituencies in the South East England (region)