Before (end of 1981) (35 seats, Elections Centre)
Conservative 17 · Other 11 · Labour 7 · SDP-Liberal Alliance 0
After (end of 1982) (35 seats, Elections Centre)
Conservative 15 · Labour 10 · Other 10 · SDP-Liberal Alliance 0
Ward results
Melcombe Regis1 seat · turnout 39.8%
| O. Carroll | Conservative | 668 |
| T. Thomas | Lib/Sdp | 401 |
| A. Hutchings | Labour | 212 |
North Central1 seat · turnout 64.6%
| P. Harvey | Conservative | 734 |
| G. Stokes | Labour | 476 |
| J. Gardner | Lib/Sdp | 271 |
Preston1 seat · turnout 42.1%
| K. Nicklen | Conservative | 973 ✓ |
| E. Inight | Lib/Sdp | 388 |
| A. Caswell | Independent | 104 |
| H. Venn | Labour | 99 |
Tophill East1 seat · turnout 38.0%
| H. Booth | Independent | 641 |
| Y Copus | Conservative | 236 |
Tophill West1 seat · turnout 21.3%
| P. Butcher | RES | 568 |
| R. Smith | Labour | 188 |
Westham North1 seat · turnout 45.5%
| V. McCarthy | Labour | 863 |
| J Ives | Conservative | 573 |
| J. Matthews | Lib/Sdp | 459 |
Westham West1 seat · turnout 38.7%
| P. Randall | Labour | 473 |
| T. Cole | Conservative | 291 |
| G. Adam | RES | 235 |
Weymouth East1 seat · turnout 53.3%
| E. Webb | Conservative | 655 ✓ |
| H. Dawson | Labour | 343 |
| C. Goodson | Lib/Sdp | 151 |
| D. Burbidge | Independent | 84 |
Weymouth West1 seat · turnout 42.8%
| R. Weaver | Independent | 752 |
| P. Diment | Conservative | 481 |
| R. Hamilton | Labour | 317 |
Wyke Regis1 seat · turnout 34.9%
| C. Taylor | RES | 509 |
| K. Horrocks | Labour | 488 |
| M. Peters | Lib/Sdp | 327 |
