Before (end of 2010) (24 seats, Elections Centre)
Liberal Democrats 12 · Conservative 10 · Other 2 · Labour 0
After (end of 2011) (24 seats, Elections Centre)
Liberal Democrats 11 · Conservative 11 · Other 2 · Labour 0
Ward results
Castle1 seat · turnout 55.8%
| Nigel Dragon | Independent | 441 ✓ |
| Susan Sides | Conservative | 332 |
| Leigh Van de Zande | Labour | 99 |
Lytchett Minster and Upton East1 seat · turnout 38.3%
| Frederick Drane | Liberal Democrats | 788 ✓ |
| Robin Guy Sequeira | Conservative | 433 |
Lytchett Minster and Upton West1 seat · turnout 50.2%
| William Pipe | Conservative | 834 ✓ |
| Andrew Starr | Liberal Democrats | 698 |
St Martin1 seat · turnout 48.4%
| Keith Green | Liberal Democrats | 541 ✓ |
| Dean Hutton | Conservative | 385 |
| Ken Simpson | UK Independence Party (UKIP) | 133 |
Swanage North1 seat · turnout 53.3%
| William Stanley Trite | Conservative | 1,192 ✓ |
| Elizabeth Clarke | Liberal Democrats | 340 |
| Loraine Harding | Labour | 285 |
Swanage South1 seat · turnout 47.1%
| Michael Pratt | Conservative | 1,123 ✓ |
| Rupert Roker | Labour | 629 |
| Michael Hadley | Liberal Democrats | 518 |
Wareham1 seat · turnout 48.8%
| Eric Osmond | Liberal Democrats | 1,124 ✓ |
| Michele Wiggins | Conservative | 816 |
| Michael Hobson | UK Independence Party (UKIP) | 288 |
Wool1 seat · turnout 45.8%
| Simon Goldsack | Liberal Democrats | 808 ✓ |
| Richard Ley | Conservative | 662 |
| Graham Douglas | Labour | 224 |