Before (end of 2006) (48 seats, Elections Centre)
Conservative 32 · Labour 12 · Liberal Democrats 3 · Other 1
After (end of 2007) (48 seats, Elections Centre)
Conservative 35 · Labour 10 · Liberal Democrats 3 · Other 0
Ward results
| Stephen Boulton | Conservative | 1,471 ✓ |
| Jennifer Blumson | Liberal Democrats | 125 |
| Kevin Pressland | Green | 115 |
| K. Pressland | Green | 114 |
| Cathy Watson | Labour | 98 |
Haldens1 seat
| Jonathan Beckermann | Conservative | 693 ✓ |
| Mike Larkins | Labour | 578 |
| Louise Lotz | Liberal Democrats | 224 |
Handside1 seat
| Helen Elizabeth Bromley | Conservative | 1,194 ✓ |
| Malcolm Cowan | Liberal Democrats | 1,044 |
| Sue Jones | Labour | 213 |
Hatfield Central1 seat
| Maureen Janet Cook | Labour | 477 ✓ |
| Douglas Berry | Conservative | 461 |
| Simon John Archer | Liberal Democrats | 294 |
Hatfield East1 seat
| Mark Long | Conservative | 725 ✓ |
| Constance Elliott | Labour | 322 |
| Lis Meyland-Smith | Liberal Democrats | 225 |
Hatfield North1 seat
| Howard Morgan | Conservative | 920 ✓ |
| Margaret White | Labour | 454 |
| Neil Ross | Liberal Democrats | 263 |
Hatfield South1 seat
| Paul Graham Smith | Conservative | 296 ✓ |
| Tony Wilder | Labour | 294 |
| Nigel Anthony van Someren Bain | Liberal Democrats | 95 |
Hatfield West1 seat
| K. Morris | Conservative | 608 |
| Sheila Wilder | Labour | 341 |
| Sheila Archer | Liberal Democrats | 177 |
Hollybush1 seat
| Lynn Chesterman | Labour | 733 ✓ |
| Peter Frederick John Knell | Conservative | 718 |
Howlands1 seat
| Hannah Berry | Conservative | 788 ✓ |
| Jill Weston | Green | 466 |
| Alan Chesterman | Labour | 437 |
Northaw1 seat
| John Mansfield | Conservative | 0 ✓ |
Panshanger1 seat
| Darren Malcolm Bennett | Conservative | 829 ✓ |
| Dean Milliken | Labour | 416 |
| Shirley Shaw | Liberal Democrats | 175 |
| Liz Verlander | Green | 80 |
Peartree1 seat
| Steve Roberts | Labour | 459 ✓ |
| Frank Annibale Stefano Marchio Marsh | Liberal Democrats | 361 |
| Christopher Hay | Conservative | 331 |
Sherrards1 seat
| John Burnapp | Conservative | 1,014 ✓ |
| Tony Crump | Labour | 427 |
| Jonathan Arch | Liberal Democrats | 249 |
| Berenice Constance Mary Dowlen | Green | 145 |
Welwyn North1 seat
| Julie Cragg | Conservative | 974 ✓ |
| John Edward Blackburn | Liberal Democrats | 185 |
| Bridgit Croft | Labour | 114 |
Welwyn South1 seat
| Andrew Canter | Conservative | 1,139 ✓ |
| Ian Skidmore | Liberal Democrats | 312 |
| Julia Henderson | Labour | 229 |