Before (end of 2011) (36 seats, Elections Centre)
Conservative 17 · Liberal Democrats 10 · Labour 7 · Other 2
After (end of 2012) (36 seats, Elections Centre)
Conservative 14 · Labour 11 · Liberal Democrats 8 · Other 3
Ward results
Littlemoor1 seat · turnout 27.1%
| Rachel Rogers | Labour | 500 ✓ |
| John Ellis | Conservative | 239 |
Melcombe Regis1 seat · turnout 26.1%
| Peter Farrell | Conservative | 431 ✓ |
| Harry Legg | Liberal Democrats | 375 |
| Jon Orrell | Green | 243 |
| Spencer Pearson | Labour | 239 |
Preston1 seat · turnout 48.8%
| Ian Cameron Bruce | Conservative | 998 ✓ |
| David George Mannings | Liberal Democrats | 841 |
| Joseph Rookes | Labour | 275 |
Radipole1 seat · turnout 35.6%
| Ian Roebuck | Liberal Democrats | 554 ✓ |
| Andrew Hutchings | Labour | 208 |
| Alison Scott | Conservative | 180 |
| Graham Winter | Independent | 147 |
Tophill West1 seat · turnout 26.4%
| Richard Nowak | Labour | 394 ✓ |
| Tim Woodcock | Independent | 315 |
| Richard Paisley | Conservative | 298 |
| Jo Bray | UPP | 72 |
Underhill1 seat · turnout 26.8%
| Sandy West | Labour | 404 ✓ |
| Robert Hughes | Independent | 184 |
| Tim Munroe | Conservative | 142 |
Westham East1 seat · turnout 31.0%
| Mike Byatt | Labour | 307 ✓ |
| Oz Kanji | Liberal Democrats | 248 |
| Andrew Manvell | Conservative | 209 |
| Jane Burnet | Green | 133 |
Westham North1 seat · turnout 34.7%
| Ryan Hope | Liberal Democrats | 706 ✓ |
| Lindsay Drage | Labour | 502 |
| Jean Woodward | Conservative | 290 |
Westham West1 seat · turnout 32.4%
| Gill Taylor | Liberal Democrats | 522 ✓ |
| Michael Wheller | Labour | 317 |
| Sonia Cash | Conservative | 127 |
Weymouth East1 seat · turnout 34.4%
| John Birtwistle | Liberal Democrats | 362 ✓ |
| Geoffrey Johnson Smith | Conservative | 322 |
| Marc Frost | Labour | 201 |
| David Michael Smith | Green | 109 |
Weymouth West1 seat · turnout 34.4%
| Colin John Huckle | Labour | 656 ✓ |
| Nigel Reed | Conservative | 481 |
| Brian Heatley | Green | 180 |
| Richard Shrubb | Liberal Democrats | 75 |
Wyke Regis1 seat · turnout 33.3%
| Kate Wheller | Labour | 1,017 ✓ |
| John Worth | Conservative | 442 |