Before (end of 1989) (35 seats, Elections Centre)
Labour 13 · Conservative 12 · Other 10 · Liberal Democrats 0
After (end of 1990) (35 seats, Elections Centre)
Labour 13 · Conservative 13 · Other 5 · Liberal Democrats 4
Ward results
Melcombe Regis1 seat · turnout 43.8%
| O. Carroll | Conservative | 668 ✓ |
| I. Scott | SLD | 594 |
| K. Wilcox | Labour | 295 |
| G. Killick | Green | 80 |
North1 seat · turnout 53.8%
| B. Thomas | Conservative | 562 ✓ |
| J. Meade | Labour | 450 |
| H Chalker | Independent | 264 |
| P. Crocker | Green | 187 |
North Central1 seat · turnout 49.4%
| A. Chedzoy | Labour | 1,587 |
| J. Mitchell | Conservative | 869 |
Preston1 seat · turnout 60.7%
| B. Ellis | SLD | 1,576 |
| P. Suggate | Conservative | 986 |
Tophill East1 seat · turnout 51.5%
| H. Booth | Independent | 476 ✓ |
| C. White | PORT | 455 |
| A. Boyle | Labour | 201 |
| J. Green | Independent | 137 |
Tophill West1 seat · turnout 40.4%
| E. Wright | PORT | 737 |
| J Draper | Labour | 538 |
| M. Leicester | Independent | 455 |
Underhill1 seat · turnout 51.0%
| P. Kimber | Labour | 514 ✓ |
| C. Hartland | SLD | 268 |
| D. Hunt | PORT | 248 |
| S. Browne | Independent | 221 |
Westham North1 seat · turnout 43.8%
| V. McCarthy | Labour | 1,246 |
| J. Scott | Conservative | 566 |
Westham West1 seat · turnout 53.7%
| P. Rendall | Labour | 939 |
| G. Hunwicks | Green | 278 |
| M. Dyke | APT | 144 |
Weymouth East1 seat · turnout 49.2%
| E. Webb | Conservative | 792 |
| R. Maslin | Labour | 493 |
Weymouth West1 seat · turnout 48.4%
| R. Weaver | Independent | 1,009 |
| M Frost | Labour | 699 |
| T. Randall | Independent | 186 |
Wyke Regis1 seat · turnout 50.5%
| B. Clark | Labour | 1,165 |
| M Northcott-Deacon | Conservative | 575 |
| G. Davidson | Green | 289 |
