Before (end of 1975) (39 seats, Elections Centre)
Labour 21 · Conservative 18 · The Liberal Party 0 · Other 0
After (end of 1976) (39 seats, Elections Centre)
Conservative 20 · Labour 13 · Other 6 · The Liberal Party 0
Ward results
Melcombe Regis3 seats · turnout 50.1%
| L. Hill | Conservative | 871 ✓ |
| L Hill | Conservative | 871 |
| J. Blackburn | Conservative | 832 ✓ |
| J Blackburn | Conservative | 832 |
| J. Nagel | Conservative | 805 ✓ |
| J Nagel | Conservative | 805 |
| P Rendall | Labour | 496 |
| P. Rendall | Labour | 496 |
| T Lloyd | Labour | 477 |
| T. Lloyd | Labour | 477 |
| Rhiannon Meades | Labour | 460 |
| R. Meades | Labour | 460 |
North3 seats · turnout 37.0%
| J. Jenner | Conservative | 1,166 |
| J. Fry | Conservative | 1,106 |
| W. Price | Conservative | 1,102 |
| J. Painter | Labour | 401 |
Portland9 seats · turnout 40.1%
| H. Clissold | Conservative | 1,974 ✓ |
| H Clissold | Conservative | 1,974 |
| P. Harvey | Conservative | 1,677 ✓ |
| P Harvey | Conservative | 1,677 |
| L. Ames | Residents | 1,670 ✓ |
| L Ames | RES | 1,670 |
| N Brown | Ind Con | 1,368 |
| N. Brown | Other | 1,368 ✓ |
| E. Wright | Other | 1,304 ✓ |
| E Wright | Ind Con | 1,304 |
| A. Martindale | Labour | 1,240 ✓ |
| A Martindale | Labour | 1,240 |
| E. Morgan | Conservative | 1,212 ✓ |
| E Morgan | Conservative | 1,212 |
| F. Morris | Labour | 1,173 ✓ |
| F Morris | Labour | 1,173 |
| W Perry | Conservative | 1,164 |
| W. Perry | Conservative | 1,164 ✓ |
| R. Norman | Conservative | 1,134 |
| R Norman | Conservative | 1,134 |
| J. Niemer | Conservative | 1,133 |
| J Niemer | Conservative | 1,133 |
| A Hawthorne | Conservative | 1,011 |
| A. Hawthorne | Conservative | 1,011 |
| E. Adams | Labour | 954 |
| Emma Adams | Labour | 954 |
| K Saunders | Labour | 861 |
| K. Saunders | Labour | 861 |
| J Bishop | Labour | 856 |
| J. Bishop | Labour | 856 |
| C. Norman | Labour | 738 |
| C Norman | Labour | 738 |
| D Knott | Labour | 675 |
| D. Knott | Labour | 675 |
| W Carroll | Labour | 652 |
| W. Carroll | Labour | 652 |
| M Doney | LIB | 558 |
| M. Doney | The Liberal Party | 558 |
| D Wellman | Labour | 504 |
| D. Wellman | Labour | 504 |
| K. Bridges | Independent | 247 |
| K Bridges | Independent | 247 |
Preston3 seats · turnout 37.6%
| J. Litschi | Conservative | 1,358 |
| K. Nicklen | Conservative | 1,279 |
| J. Stewart | Conservative | 1,229 |
| H. Dawson | Labour | 330 |
| H. Hall | Labour | 320 |
Radipole3 seats · turnout 36.5%
| A. Biles | Conservative | 1,240 |
| F. Thomas | Conservative | 1,090 |
| P. Hill | Conservative | 1,028 |
| C. Cousins | Labour | 415 |
| B. Hayward | Independent | 260 |
Westham East3 seats · turnout 44.0%
| C. Price | Labour | 690 |
| M. Jewkes | Labour | 597 |
| Noreen Bi | Labour | 581 |
| A. Robinson | Conservative | 570 |
| M. Jeanes | Conservative | 492 |
| R. Russell | Conservative | 472 |
| J. Brook | LIB | 335 |
Westham North3 seats
| D. Hughes | RES | 1,154 |
| R. Clayton | Labour | 809 |
| V. McCarthy | Labour | 745 |
| L. King | Labour | 589 |
Westham West3 seats
| R. Gainey | Labour | 0 ✓ |
| A. Chedzoy | Labour | 0 ✓ |
| M. Stewart | Labour | 0 ✓ |
Weymouth East3 seats · turnout 57.9%
| E. Webb | Conservative | 1,257 |
| A. Griffin | Conservative | 1,243 |
| R. Duckworth | Conservative | 1,149 |
| H. McGrath | Labour | 668 |
| B. Clover | Labour | 533 |
| R. Richmond | Labour | 510 |
Weymouth West3 seats · turnout 51.2%
| Hutchinson G. | Independent | 1,157 |
| T. Burge | Independent | 1,087 |
| A. Santonna | Conservative | 986 |
| B. Hall | Labour | 650 |
| D. Hall | Labour | 634 |
| K. Gilpin | Labour | 470 |
Wyke Regis3 seats · turnout 49.6%
| A. Bown | Labour | 1,053 |
| G. Stokes | Labour | 907 |
| C. Barnard | Labour | 904 |
| J. Paulley | Independent | 776 |
| R. Shewry | Independent | 731 |
| D. Mayzes | Independent | 684 |
