Lagan Valley

§ This page provides a baseview of UK constituency, bringing together various information and resources to help you better understand the area of Lagan Valley.

Overview ⁞ Lagan Valley lies between Belfast and the rolling hills of County Down, with Lisburn as its main urban centre. The River Lagan flows through the area, offering scenic walking and cycling trails, including the popular Lagan Towpath. Historic attractions include Hillsborough Castle and Gardens, while the surrounding countryside is dotted with quaint villages and farmland. Shopping, leisure, and cultural amenities blend with green spaces like Wallace Park, making Lagan Valley a balanced mix of urban convenience and rural charm.

Constituency Map and Boundary Information

Below is an interactive map showing the boundary of the Lagan Valley parliamentary constituency. The boundary data is sourced from the Office for National Statistics (ONS), using the latest official geographic definitions.

You can explore official statistics for this area on the ONS Explore Local Statistics page, or view its location on the UK Parliament constituency map.

Map tiles © OpenStreetMap contributors. Boundary data: Contains Ordnance Survey data © Crown copyright and database right 2024; Contains Office for National Statistics data © ONS 2024, licensed under the Open Government Licence v3.0.

Wards in Lagan Valley

Lagan Valley is divided into 29 wards, listed below in alphabetical order.

  • Aghagallon
  • Ballinderry
  • Ballymacash
  • Ballymacbrennan
  • Ballymacoss
  • Blaris
  • Donaghcloney
  • Dromara
  • Dromore
  • Gransha
  • Harmony Hill
  • Hilden
  • Hillhall
  • Hillsborough
  • Knockmore
  • Lagan
  • Lagan Valley
  • Lambeg
  • Lisnagarvey
  • Maghaberry
  • Magheralave
  • Magheralin
  • Maze
  • Moira
  • Old Warren
  • Quilly
  • Ravernet
  • Wallace Park
  • White Mountain

Lagan Valley is a constituency that covers these wards in Armagh City, Banbridge and Craigavon / Lisburn and Castlereagh.

Wards and constituencies: wards are the smallest electoral areas used to elect local councillors who make decisions about local services, while parliamentary constituencies are much larger areas used to elect one MP to represent them in the House of Commons. In simple terms, wards are for local council elections, and constituencies are for national parliamentary elections.

Population by age group

The most recent data for constituencies in England and Wales comes from mid-year estimates for 2022. This tells us what the population was estimated to be on 30 June 2022.

Population by age group, June 2022
Age Band Constituency (Number) Constituency (%) Northern Ireland (Number) Northern Ireland (%)
0 to 17 25,881 22.88% 436,622 22.74%
18 to 24 7,319 6.47% 149,248 7.77%
25 to 34 13,979 12.36% 240,231 12.51%
35 to 49 22,974 20.31% 374,384 19.50%
50 to 64 22,593 19.97% 377,415 19.65%
65 and over 20,386 18.02% 342,482 17.83%

Population by ethnic group

The most recent census asked people about their ethnic group. The census was carried out in March 2021 in England, Wales and Northern Ireland and in March 2022 in Scotland.

Population by ethnic group March 2021
Ethnic Group Constituency (Number) Constituency (%) Northern Ireland (%)
White 108,714 97.06% 96.55%
Mixed 869 0.78% 0.76%
Indian 580 0.52% 0.52%
Chinese 421 0.38% 0.50%
Filipino 328 0.29% 0.23%
Black African 265 0.24% 0.42%
Other Asian 215 0.19% 0.28%
Other ethnicities 193 0.17% 0.19%
Pakistani 126 0.11% 0.08%
Black Other 125 0.11% 0.16%
Arab 111 0.10% 0.10%
Irish Traveller 51 0.05% 0.14%
Roma 13 0.01% 0.08%

Lagan Valley compared with other constituencies

Lagan Valley has a population of 113,132 (2024 mid-year estimate by ONS). The population of the UK is 69,281,400 as of mid-2024. There are 650 constituencies, so the average population per constituency is around 106,600.

Population of 650 Constituencies
Population of 650 Constituencies (2024 mid-year estimate) sorted ascending

Compared with the other 649 constituencies, Lagan Valley has a population higher than 455, lower than 124, and similar to 71 constituencies (±2,500, including itself).

This Constituency Baseview is automatically generated using data from multiple official sources and stored in our database. The underlying programme was last updated on 4 December 2025. We continue to enhance these pages and add new insights, so feel free to check back for updates.