Greater London Council Election, 1970
| Political Party | Votes | Share of Vote (%) | % Change | Seats Won | Seats Change |
| Tory | 971,227 | 50.57 | -2.08 | 65 | -17 |
| Labour | 766,271 | 39.90 | +5.94 | 35 | +17 |
| Liberal | 103,837 | 5.41 | -3.39 | 0 | - |
| Others | 79,081 | 4.12 | -0.48 | 0 | - |
Turnout: 1,920,416 people voted
| 1967 Election | 1970 Election | 1973 Election |