Northern Ireland, 1964 vs 1966: seat-by-seat change
Every constituency in Northern Ireland compared between the 1964 and 1966 general elections: which seats changed hands and how far each swung.
| Constituency | 1964 | 1966 | Majority | Con–Lab swing |
|---|---|---|---|---|
| Antrim North | Con | Con | 56.2% | +6.0 |
| Antrim South | Con | Con | 28.6% | +8.5 |
| Armagh | Con | Con | 44.1% | −9.5 |
| Belfast East | Con | Con | 9.3% | +6.3 |
| Belfast North | Con | Con | 14.9% | +4.9 |
| Belfast South | Con | Con | 30.7% | +8.3 |
| Belfast West | Con | Oth gain | 4.0% | −15.6 |
| Down North | Con | Con | 57.1% | −11.9 |
| Down South | Con | Con | 45.3% | −8.1 |
| Fermanagh and South Tyrone | Con | Con | 8.0% | −1.6 |
| Londonderry County | Con | Con | 16.2% | +3.0 |
| Ulster Mid | Con | Con | 4.5% | −4.7 |
Official results House of Commons Library and UK Parliament election results data. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data