Northern Ireland: New Constituency Boundaries 2018

Each new seat can be described as a combination of parts of old seats. These tables show this decomposition. The winner of the old seat at the 2017 election is shown by party colour, as is the implied winner of the new seat.

The implied results are calculated using the local election results for the wards which make up each old seat. This should give the most accurate projection, since it reflects varying political behaviour across the seat.

Northern Ireland Change Table

  Old SeatsNew SeatsChangeDisappearSwitch OutSwitch InFresh
UUP0000000
SDLP0000000
DUP10100-1010
UKIP0000000
Green0000000
SF7700000
MIN10-10-100
Total1817-1-1-110

The table shows how the various changes affect each party in this area. The total old and new seats are shown for each party, as well as their difference ('Change'). The change in seats is also explained through the four explanations:

The old seats which are disappearing are: Antrim South.

The old seats which are lost to another party are: Down North.

The new seats which are gained from another party are: Down North.

Antrim

New seatPrimary componentSecondary component(s)
Antrim East 91.7% of Antrim East 24.2% of Antrim South
Antrim Mid 72.9% of Antrim North 21.2% of Antrim South
0.7% of Antrim East
Belfast East 97.3% of Belfast East 9.6% of Down North
3.0% of Belfast South
Belfast North 92.2% of Belfast North 13.5% of Antrim South
6.2% of Antrim East
Belfast South 97.0% of Belfast South 4.4% of Strangford
3.5% of Lagan Valley
2.7% of Belfast East
0.2% of Belfast West
Belfast West 99.8% of Belfast West 8.1% of Lagan Valley
7.8% of Belfast North

Armagh

New seatPrimary componentSecondary component(s)
Newry and Armagh 94.3% of Newry and Armagh 1.9% of Down South
0.8% of Fermanagh and South Tyrone
Upper Bann 82.0% of Upper Bann 4.5% of Newry and Armagh
0.6% of Fermanagh and South Tyrone
0.1% of Lagan Valley

Down

New seatPrimary componentSecondary component(s)
Antrim South 62.8% of Lagan Valley 41.1% of Antrim South
Down Mid 69.9% of Strangford 25.3% of Lagan Valley
15.4% of Upper Bann
2.6% of Down South
Down North 90.4% of Down North 23.0% of Strangford
Down South 95.5% of Down South 2.5% of Upper Bann
2.7% of Strangford
1.2% of Newry and Armagh
0.2% of Lagan Valley

Fermanagh

New seatPrimary componentSecondary component(s)
Fermanagh and South Tyrone 98.7% of Fermanagh and South Tyrone 2.4% of Ulster Mid
Tyrone West 98.6% of Tyrone West 10.8% of Londonderry East
0.0% of Foyle

Londonderry

New seatPrimary componentSecondary component(s)
Causeway 78.4% of Londonderry East 27.1% of Antrim North
1.4% of Antrim East
Foyle 100% of Foyle 1.4% of Tyrone West

Tyrone

New seatPrimary componentSecondary component(s)
Ulster Mid 97.6% of Ulster Mid 10.7% of Londonderry East