Lagan Valley (UK Parliament constituency)
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| Lagan Valley | |
|---|---|
| County constituency for the House of Commons | |
![]() Interactive map of boundaries from 2024 | |
Location within Northern Ireland | |
| District | |
| Major settlements | Lisburn |
| Current constituency | |
| Created | 1983 |
| Member of Parliament | Sorcha Eastwood (Alliance) |
| Seats | 1 |
| Created from | |
Lagan Valley is a Northern Ireland parliamentary constituency in the House of Commons of the United Kingdom covering the area of the Lagan Valley including the south part of County Antrim and the north-west part of County Down.
Its MP since the 2024 general election is Sorcha Eastwood of the Alliance Party.[2] This was the first time since its creation it did not elect a unionist MP.
The seat was created in 1983, as part of an expansion of Northern Ireland's constituencies from 12 to 17, and was predominantly made up from parts of South Antrim and North Down in the area of the River Lagan. In their original proposals, in January 1980, the boundary commission proposed calling it "Lagan". In further revisions in 1995 it lost some areas to both Belfast West and Strangford.
| 1983–1997 | The district of Lisburn, and in the borough of Castlereagh the ward of Carryduff.[3] |
| 1997–2010 | In the district of Lisburn, the wards of Ballinderry, Ballymacash, Ballymacbrennan, Ballymacoss, Blaris, Derryaghy, Dromara, Drumbo, Dunmurry, Glenavy, Harmony Hill, Hilden, Hillhall, Hillsborough, Knockmore, Lagan Valley, Lambeg, Lisnagarvey, Maghaberry, Magheralave, Maze, Moira, Old Warren, Seymour Hill, Tonagh, and Wallace Park;
and in the district of Banbridge, the wards of Dromore North, Dromore South, Gransha, and Quilly.[4] |
| 2010–2024 | In the district of Banbridge, the wards of Dromore North, Dromore South, Gransha, and Quilly; and
in the city of Lisburn, the wards of Ballinderry, Ballymacash, Ballymacbrennan, Ballymacoss, Blaris, Dromara, Drumbo, Harmony Hill, Hilden, Hillhall, Hillsborough, Knockmore, Lagan Valley, Lambeg, Lisnagarvey, Maghaberry, Magheralave, Maze, Moira, Old Warren, Seymour Hill, Tonagh, Wallace Park, and that part of Derryaghy ward lying to the south and east of the Derryaghy and Lagmore townland boundary.[5] |
| 2024– | In the district of Armagh City, Banbridge and Craigavon, the wards of Aghagallon, the part of the Donaghcloney ward to the east of the western boundary of the 2010–2024 Lagan Valley constituency, Dromore, the part of the Gransha ward to the north of the southern boundary of the 2010–2024 Lagan Valley constituency, Magheralin, and Quilly; and
in the district of Lisburn and Castlereagh, the wards of Ballinderry, Ballymacash, Ballymacbrennan, Ballymacoss, Blaris, Dromara, Harmony Hill, Hilden, Hillhall, Hillsborough, Knockmore, Lagan, Lagan Valley, Lambeg, Lisnagarvey, Maghaberry, Magheralave, Maze, Moira, Old Warren, Ravernet, Wallace Park, and White Mountain.[6] |


