Belfast South and Mid Down begins in south Belfast and extends well beyond the city into Lisburn and Castlereagh and part of Newry, Mourne and Down. Its Belfast neighbourhoods include Finaghy, Malone, Ormeau, Stranmillis, Ravenhill and Windsor, while farther south the constituency includes Carryduff, Newtownbreda, Drumbo, Moneyreagh and Saintfield. The seat therefore changes noticeably from a compact urban constituency around south Belfast into suburban and semi-rural communities on the city’s southern edge. The 2023 boundary review deliberately extended the former Belfast South seat into Mid Down, producing a constituency that follows the main settled corridor south from Belfast while also taking in open countryside and smaller communities between its larger centres.
Election data comes from UK Parliament. Turnout percentage is calculated by Project Open Gov from Parliament's turnout and electorate figures.
People and place
A population and household snapshot for Belfast South and Mid Down, using validated House of Commons Library constituency datasets.
Estimated population124,323
EstimateMid-2024 estimate
Region / nationNorthern Ireland
Age profile
0 to 1717.3% · 21,466 people
18 to 2415.9% · 19,758 people
25 to 3417.6% · 21,878 people
35 to 4918.3% · 22,779 people
50 to 6415.8% · 19,691 people
65 and over15.1% · 18,751 people
Population figures are mid-2024 estimates from the House of Commons Library. Project Open Gov calculates the estimated population shown above by summing the six published age-band counts. View population source ↗
Home ownership and renting
Housing tenure shows how households in this constituency described their home at the most recent census.
49,666 householdsCensus 2021
Home owners56.5% · 28,075 households
Private renters26.8% · 13,329 households
Social renters14.0% · 6,943 households
Other tenure2.7% · 1,319 households
“Other tenure” combines shared ownership and households recorded as living rent free.
Housing-tenure figures come from the most recent census: 2021 in England, Wales and Northern Ireland and 2022 in Scotland. View housing-tenure source ↗
Household composition
A broad view of household types in this constituency. Project Open Gov uses the four broad groups supplied by the Commons Library so the presentation remains consistent across the UK.
49,663 householdsCensus 2021
One-person households34.4% · 17,065 households
Families with dependent children23.3% · 11,571 households
Other single-family households31.6% · 15,718 households
Other household types10.7% · 5,309 households
Household-composition figures come from the Commons Library constituency dataset. The source uses census data and Project Open Gov displays its broad household groups rather than attempting to harmonise the detailed categories itself. View household-composition source ↗
Disability and day-to-day activities
The source records whether day-to-day activities are limited and uses separate person-level tables for England & Wales, Scotland and Northern Ireland.
119,550 people in the source baseCensus 2021Source comparison: Northern Ireland
Day-to-day activities limited a lot8.2% · 9,859 people
Day-to-day activities limited a little11.1% · 13,284 people
Non-disabled80.6% · 96,407 people
Comparison note: the workbook uses different source terminology across the UK: England & Wales uses “Disabled under the Equality Act”, while Scotland and Northern Ireland use “Disabled” / “Non-disabled”. Project Open Gov therefore preserves the source categories and does not present them as one single like-for-like UK legal definition.
Disability figures come from the Commons Library constituency workbook. This profile uses the person-level tables only; the workbook also contains separate household-level disability tables which are not used here. View disability source ↗
Petitions
Open UK Government and Parliament petitions that have reached at least 10,000 signatures nationally, ranked here by the number of signatures recorded in this constituency.
Petition signatures are not a poll and do not show what the constituency as a whole thinks. A person can also sign more than one petition.
Open petitionCloses 12 September 2026
Make a public animal abuser register & automatically ban ownership
Signatures in this constituency329
Signatures nationally244,689
Government response published · Debate scheduled for 29 June 2026
Signature counts come from the official UK Government and Parliament petitions data and may change while a petition remains open. Browse official petitions ↗
Funding and local projects
National Lottery grants awarded to organisations recorded in this parliamentary constituency since 4 July 2024.
The constituency is based on the recipient organisation recorded in the source data. The funded activity may sometimes take place across a wider area.
Grants recorded356
Total awarded£33,637,237
Most recent awards
National Lottery grantAwarded 24 June 2026
Hope for the Community-Belfast
Hope Mental Wellbeing Ltd
£19,350
The National Lottery Community Fund · Charitable and Community including Health, Education and Environment
About this award
Hope Mental Wellbeing Ltd - Community - Awards for All Northern Ireland
National Lottery grantAwarded 23 June 2026
Across Cultures 2
Accidental Theatre Ltd
£20,000
The National Lottery Community Fund · Charitable and Community including Health, Education and Environment
About this award
Accidental Theatre Ltd - Community - Awards for All Northern Ireland
National Lottery grantAwarded 22 June 2026
Safer Streets and Education Programme
SOS NI
£19,989
The National Lottery Community Fund · Charitable and Community including Health, Education and Environment
About this award
SOS NI - Other - Awards for All Northern Ireland
National Lottery grantAwarded 29 May 2026
(Connect & Thrive) Yemeni Community Programme for Families
United Yemeni Community NI- UYCNI
£5,270
The National Lottery Community Fund · Charitable and Community including Health, Education and Environment
About this award
United Yemeni Community NI- UYCNI - Community - Awards for All Northern Ireland
National Lottery grantAwarded 29 May 2026
Moneyeagh Women's Institute Community Seniors Keep Fit Group
Moneyreagh Women's Institute
£6,170
The National Lottery Community Fund · Charitable and Community including Health, Education and Environment
About this award
Moneyreagh Women's Institute - Community - Awards for All Northern Ireland
351 more awards are available.
Source: DCMS National Lottery Grants Database. The figures shown cover awards from 4 July 2024 to 1 July 2026. View official grants data ↗
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