Before (end of 1990) (22 seats, Elections Centre)
Conservative 9 · Other 8 · Liberal Democrats 5 · Labour 0
After (end of 1991) (22 seats, Elections Centre)
Conservative 10 · Other 8 · Liberal Democrats 4 · Labour 0
Ward results
Castle1 seat · turnout 48.0%
| H. Carter | Independent | 808 |
| P. Wakeham | LIB | 220 |
| S. Chambers | Labour | 159 |
Lytchett Minster1 seat · turnout 35.4%
| D. Humphry | Independent | 883 |
| W. Galpin | Liberal Democrats | 567 |
| R. Cade | Labour | 433 |
| A. Moseley | LIB | 184 |
St Martin1 seat · turnout 44.2%
| M. Bond | Independent | 369 |
| J. Hedley | Labour | 241 |
| D. Jackson | LIB | 158 |
| P Turner | Liberal Democrats | 126 |
Swanage North1 seat · turnout 55.1%
| V. Marsh | Conservative | 986 |
| G. Baume | Independent | 516 |
| B. Belben | Labour | 228 |
Swanage South1 seat · turnout 47.3%
| C. Makin | Conservative | 1,013 |
| H. Meers | Labour | 542 |
| B. Dunford | Liberal Democrats | 537 |
Wareham1 seat · turnout 49.4%
| C. Patterson | Conservative | 706 |
| Bird K. | Liberal Democrats | 679 |
| C. Butler | LIB | 533 |
| R Huskinson | Labour | 388 |
