Before (end of 1989) (43 seats, Elections Centre)
Labour 22 · Conservative 19 · Liberal Democrats 2 · Other 0
After (end of 1990) (43 seats, Elections Centre)
Labour 24 · Conservative 19 · Liberal Democrats 0 · Other 0
Ward results
Brookmans Park & Little Heath1 seat · turnout 53.9%
| W Storey | Conservative | 1,631 |
| W. Parkinson | SLD | 308 |
| M Parry | Labour | 301 |
Haldens1 seat · turnout 50.2%
| K. Lounds | Labour | 2,766 ✓ |
| G. Warren | Conservative | 1,251 |
| D. Bartlett | SLD | 394 |
| D Ashton | Green | 306 |
Handside2 seats · turnout 61.8%
| S. Haslam | Conservative | 1,263 ✓ |
| J. Sargeant | Conservative | 1,230 ✓ |
| M. Cowan | SLD | 995 |
| J. Burnham | SLD | 809 |
| R. Quentin | Labour | 703 |
| P. Kirby | Green | 253 |
| B. Jones | Green | 236 |
Hatfield East1 seat · turnout 54.7%
| J. Scott | Labour | 1,308 |
| M Carse | Conservative | 1,247 |
| P. Sherrard | SLD | 423 |
Hatfield North1 seat · turnout 52.9%
| G. Wenham | Labour | 1,264 ✓ |
| B. Sherriff | Conservative | 689 |
| J. Monro | SLD | 284 |
| B. Davies | Green | 119 |
Hatfield West1 seat · turnout 56.8%
| D. Lovelace | Labour | 1,678 |
| C Croft | Conservative | 916 |
| R. Griffiths | SLD | 413 |
Hollybush1 seat · turnout 55.6%
| D. McGinty | Labour | 1,622 |
| E. Smith | Conservative | 473 |
| M. Knight | Green | 198 |
Northaw & Cuffley1 seat · turnout 52.8%
| C. Selous | Conservative | 1,611 |
| C. Wells | Labour | 318 |
| R. Dubow | SLD | 227 |
Peartree1 seat · turnout 49.7%
| M. Mably | Labour | 1,681 ✓ |
| A. Smith | Conservative | 360 |
| S. Porter | SLD | 175 |
| Mason J. | Green | 125 |
Sherrards1 seat · turnout 66.0%
| Jacqui Russell | Labour | 1,568 ✓ |
| F. Westwick | Conservative | 961 |
| C. Cory | SLD | 265 |
| M. Annand | Green | 167 |