Before (end of 2010) (36 seats, Elections Centre)
Conservative 18 · Liberal Democrats 11 · Labour 5 · Other 2
After (end of 2011) (36 seats, Elections Centre)
Conservative 17 · Liberal Democrats 10 · Labour 7 · Other 2
Ward results
Melcombe Regis1 seat · turnout 34.2%
| Joy Stanley | Liberal Democrats | 748 ✓ |
| Andrew Manvell | Conservative | 592 |
| Elaine Dorothy Walker | Labour | 365 |
Preston1 seat · turnout 61.0%
| Peter Chapman | Conservative | 1,415 ✓ |
| Richard Collings | Liberal Democrats | 858 |
| Maureen Drake | Labour | 367 |
Radipole1 seat · turnout 46.3%
| Bill White | Liberal Democrats | 764 ✓ |
| Patricia Buckby | Conservative | 412 |
| James Draper | Labour | 243 |
Tophill East1 seat · turnout 43.6%
| David Hawkins | Independent | 517 ✓ |
| Richard Paisley | Conservative | 374 |
| Sandy West | Labour | 225 |
Tophill West1 seat · turnout 38.5%
| Amanda Munro | Conservative | 810 ✓ |
| Penny McCartney | Labour | 749 |
Upwey and Broadwey1 seat · turnout 44.6%
| Mike Goodman | Conservative | 436 ✓ |
| Roger Genge | Liberal Democrats | 372 |
| Michael Drake | Labour | 301 |
| Christopher Steadman | Independent | 191 |
Westham North1 seat · turnout 40.9%
| Andrew Blackwood | Labour | 666 ✓ |
| Brendan Webster | Liberal Democrats | 568 |
| Claire Waghorn | Conservative | 513 |
Westham West1 seat · turnout 42.8%
| Lucy Hamilton | Labour | 461 ✓ |
| Ryan Hope | Liberal Democrats | 458 |
| Jean Woodward | Conservative | 346 |
Wey Valley1 seat · turnout 52.3%
| Pamela Nixon | Conservative | 1,038 ✓ |
| Spencer Pearson | Labour | 316 |
| Brian Heatley | Green | 149 |
Weymouth East1 seat · turnout 44.5%
| Jane Hall | Conservative | 548 ✓ |
| Rachel Rogers | Labour | 421 |
| Oz Kanji | Liberal Democrats | 311 |
Weymouth West1 seat
| R Kosior | Conservative | 766 ✓ |
| Colin John Huckle | Labour | 734 |
| Mark Fisher | Liberal Democrats | 263 |
Wyke Regis1 seat · turnout 44.3%
| Anne Kenwood | Labour | 790 ✓ |
| Christopher Latham | Conservative | 707 |
| Angie Barnes | Independent | 434 |