London, 1966 vs 1970: seat-by-seat change
Every constituency in London compared between the 1966 and 1970 general elections: which seats changed hands and how far each swung.
| Constituency | 1966 | 1970 | Majority | Con–Lab swing |
|---|---|---|---|---|
| Acton | Lab | Lab | 2.3% | −6.6 |
| Barking | Lab | Lab | 38.8% | −2.8 |
| Barnet | Con | Con | 16.9% | −3.3 |
| Barons Court | Lab | Lab | 4.0% | −3.3 |
| Battersea North | Lab | Lab | 37.7% | −4.8 |
| Battersea South | Lab | Lab | 7.7% | −3.5 |
| Beckenham | Con | Con | 33.3% | −4.3 |
| Bermondsey | Lab | Lab | 53.9% | −3.7 |
| Bethnal Green | Lab | Lab | 41.1% | −5.8 |
| Bexley | Con | Con | 15.8% | −5.8 |
| Brentford and Chiswick | Lab | Lab | 1.9% | −0.1 |
| Bromley | Con | Con | 34.6% | −4.5 |
| Camberwell Dulwich | Lab | Lab | 2.1% | −5.6 |
| Camberwell Peckham | Lab | Lab | 34.9% | −4.5 |
| Carshalton | Con | Con | 20.6% | −4.7 |
| Chelsea | Con | Con | 41.7% | −4.9 |
| Chislehurst | Lab | Con gain | 6.7% | −4.2 |
| Cities of London and Westminster | Con | Con | 28.1% | −4.3 |
| Croydon North East | Con | Con | 9.7% | −4.2 |
| Croydon North West | Con | Con | 11.8% | −2.6 |
| Croydon South | Lab | Con gain | 7.1% | −3.6 |
| Dagenham | Lab | Lab | 43.7% | −4.3 |
| Deptford | Lab | Lab | 31.4% | −4.5 |
| Ealing North | Lab | Lab | 0.7% | −2.3 |
| Ealing South | Con | Con | 20.7% | −3.6 |
| East Ham North | Lab | Lab | 19.8% | −6.0 |
| East Ham South | Lab | Lab | 23.8% | −8.1 |
| Edmonton | Lab | Lab | 5.1% | −6.0 |
| Enfield East | Lab | Lab | 12.5% | −4.8 |
| Enfield West | Con | Con | 31.7% | −2.6 |
| Erith and Crayford | Lab | Lab | 11.8% | −4.7 |
| Feltham | Lab | Lab | 13.5% | −3.4 |
| Finchley | Con | Con | 23.6% | −2.6 |
| Fulham | Lab | Lab | 11.8% | −4.2 |
| Greenwich | Lab | Lab | 21.0% | −4.4 |
| Guildford | Con | Con | 28.7% | −5.6 |
| Hackney Central | Lab | Lab | 29.8% | −5.9 |
| Hammersmith North | Lab | Lab | 25.4% | −6.1 |
| Hampstead | Lab | Con gain | 1.0% | −2.8 |
| Harrow Central | Con | Con | 12.1% | −3.7 |
| Harrow East | Lab | Con gain | 10.5% | −5.7 |
| Harrow West | Con | Con | 32.1% | −3.9 |
| Hayes and Harlington | Lab | Lab | 16.4% | −5.1 |
| Hendon North | Con | Con | 8.6% | −3.6 |
| Hendon South | Con | Con | 16.9% | −3.1 |
| Heston and Isleworth | Con | Con | 11.9% | −4.8 |
| Holborn and St Pancras | Lab | Lab | 10.3% | −4.3 |
| Hornchurch | Lab | Con gain | 8.0% | −6.1 |
| Hornsey | Con | Con | 8.7% | −3.7 |
| Ilford North | Con | Con | 16.3% | −4.9 |
| Ilford South | Lab | Con gain | 3.2% | −4.5 |
| Islington East | Lab | Lab | 23.5% | −2.8 |
| Islington North | Lab | Lab | 23.3% | −2.7 |
| Islington South West | Lab | Lab | 29.7% | −5.8 |
| Kensington North | Lab | Lab | 13.6% | −2.2 |
| Kensington South | Con | Con | 51.4% | −3.1 |
| Kingston upon Thames | Con | Con | 25.0% | −3.6 |
| Lambeth Brixton | Lab | Lab | 14.6% | −4.0 |
| Lambeth Norwood | Lab | Lab | 1.8% | −2.0 |
| Lambeth Vauxhall | Lab | Lab | 27.1% | −3.0 |
| Lewisham North | Lab | Lab | 2.9% | −1.6 |
| Lewisham South | Lab | Lab | 16.5% | −5.1 |
| Lewisham West | Lab | Con gain | 2.0% | −3.5 |
| Leyton | Lab | Lab | 13.3% | −2.1 |
| Merton and Morden | Con | Con | 9.5% | −4.2 |
| Mitcham | Con | Con | 10.4% | −4.7 |
| Orpington | Lib | Con gain | 2.6% | −3.1 |
| Paddington North | Lab | Lab | 14.4% | −5.9 |
| Paddington South | Con | Con | 13.2% | −3.2 |
| Poplar | Lab | Lab | 60.7% | −4.1 |
| Richmond (Surrey) | Con | Con | 19.6% | −2.7 |
| Romford | Lab | Lab | 5.2% | −4.8 |
| Ruislip Northwood | Con | Con | 31.8% | −6.9 |
| Shoreditch and Finsbury | Lab | Lab | 33.8% | −6.5 |
| Southall | Lab | Lab | 11.7% | −1.3 |
| Southgate | Con | Con | 35.9% | −3.5 |
| Southwark | Lab | Lab | 39.2% | −6.3 |
| St.Marylebone | Con | Con | 32.8% | −3.3 |
| St.Pancras North | Lab | Lab | 21.0% | −5.6 |
| Stepney | Lab | Lab | 55.4% | −2.0 |
| Stoke Newington and Hackney North | Lab | Lab | 28.1% | −5.4 |
| Surbiton | Con | Con | 20.5% | −2.4 |
| Sutton and Cheam | Con | Con | 30.8% | −5.0 |
| Tottenham | Lab | Lab | 22.6% | −4.0 |
| Twickenham | Con | Con | 22.1% | −4.2 |
| Uxbridge | Lab | Con gain | 7.7% | −4.8 |
| Walthamstow East | Lab | Con gain | 1.7% | −3.6 |
| Walthamstow West | Lab | Lab | 20.1% | −8.2 |
| Wandsworth Central | Lab | Lab | 8.1% | −2.9 |
| Wandsworth Clapham | Lab | Con gain | 9.4% | −10.2 |
| Wandsworth Putney | Lab | Lab | 2.6% | −1.8 |
| Wandsworth Streatham | Con | Con | 15.8% | −3.3 |
| Wembley North | Con | Con | 18.7% | −3.6 |
| Wembley South | Con | Con | 7.3% | −1.9 |
| West Ham North | Lab | Lab | 37.7% | −5.7 |
| West Ham South | Lab | Lab | 55.4% | −5.1 |
| Willesden East | Lab | Lab | 12.7% | −2.5 |
| Willesden West | Lab | Lab | 36.1% | −2.0 |
| Wimbledon | Con | Con | 23.5% | −2.4 |
| Wood Green | Lab | Lab | 14.2% | −3.7 |
| Woolwich East | Lab | Lab | 30.9% | −6.2 |
| Woolwich West | Lab | Lab | 1.5% | −4.0 |
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