Before (end of 1997) (47 seats, Elections Centre)
Labour 31 · Conservative 16 · Other 0 · Liberal Democrats 0
After (end of 1998) (47 seats, Elections Centre)
Labour 27 · Conservative 20 · Liberal Democrats 0 · Other 0
Ward results
Brookmans Park & Little Heath2 seats · turnout 32.2%
| F Maynard | Conservative | 1,236 |
| Jack Dean | Conservative | 1,121 |
| Margaret Toch | Labour | 256 |
| R Agarwala | Liberal Democrats | 249 |
| M Parry | Labour | 243 |
Haldens1 seat · turnout 27.9%
| R. Hallahan | Labour | 997 |
| R. Trigg | Conservative | 366 |
| C Gabell | Liberal Democrats | 240 |
Handside1 seat · turnout 38.8%
| S. Haslam | Conservative | 996 |
| G Beecroft | Liberal Democrats | 512 |
| J. Spinks | Labour | 474 |
Hatfield East1 seat · turnout 33.7%
| D. Bennett | Conservative | 743 |
| Margaret White | Labour | 647 |
| Lis Meyland-Smith | Liberal Democrats | 236 |
Hatfield North1 seat · turnout 28.4%
| G. Wenham | Labour | 688 |
| P. O'Brien | Conservative | 347 |
| A. Benakis | Liberal Democrats | 163 |
Hatfield West1 seat · turnout 26.1%
| R. Moss | Labour | 669 |
| K Jackson | Conservative | 401 |
| G. Pryke | Liberal Democrats | 235 |
Hollybush1 seat · turnout 30.3%
| Susana Tinsley | Labour | 824 |
| Irene Hilda Dean | Conservative | 250 |
| P. Sherrard | Liberal Democrats | 161 |
Howlands2 seats
| L Fry | Labour | 847 ✓ |
| S Samat | Labour | 716 ✓ |
| G Perry | Conservative | 430 |
| S Champ | Conservative | 385 |
| W Corbishley | Liberal Democrats | 186 |
Northaw & Cuffley1 seat · turnout 32.3%
| J. Nicholls | Conservative | 888 |
| B. Cheetham | Third Way | 187 |
| D. Marcus | Labour | 164 |
| R. Dubow | Liberal Democrats | 124 |
Panshanger1 seat · turnout 32.1%
| M Kathke | Conservative | 655 |
| Brenda Marcus | Labour | 356 |
| E. Naseby | Liberal Democrats | 200 |
Peartree2 seats · turnout 21.9%
| Jacqui Russell | Labour | 757 |
| A. Tinsley | Labour | 734 |
| D. Perkins | Conservative | 222 |
| M Carse | Conservative | 194 |
| Louise Lotz | Liberal Democrats | 157 |
Sherrards1 seat
| John Scarff | Conservative | 922 ✓ |
| F St. Francis | Labour | 785 |
| M Richardson | Liberal Democrats | 263 |
Welwyn South1 seat · turnout 22.6%
| R. Smith | Conservative | 936 |
| P. Beasley | Labour | 307 |
| D. Cooke | Liberal Democrats | 192 |