Before (end of 1987)
Not known.
After (end of 1988)
Not known.
Ward results
Ashley1 seat · turnout 42.4%
| S. Capper | Conservative | 829 |
| M. Lawson | SLD | 810 |
| C. Hayward | Labour | 456 |
Cunningham1 seat · turnout 48.1%
| C. Ellis | Conservative | 926 |
| R. Donald | SLD | 920 |
| P. Robinson | Labour | 482 |
Harpenden East1 seat · turnout 56.3%
| A. Baird | Conservative | 1,673 ✓ |
| C. Canfield | SLD | 780 |
| D. Crew | Labour | 260 |
| J. Bishop | Green | 142 |
Harpenden North1 seat · turnout 40.6%
| M. Purkiss | Conservative | 1,471 |
| D. Groom | SLD | 631 |
| B. Saffery | Labour | 319 |
Harpenden South1 seat · turnout 38.9%
| G. Martyn | Conservative | 1,590 |
| B. Webb | SLD | 412 |
| M. Black | Labour | 231 |
Harpenden West1 seat · turnout 39.8%
| M. Parker | Conservative | 1,559 |
| P. Bedford | SLD | 548 |
| J. O'Brien | Labour | 193 |
London Colney1 seat · turnout 43.5%
| M. Macmillan | Labour | 1,456 |
| B. Cozens | Conservative | 848 |
| C. Cheng | SLD | 112 |
Marshalswick South1 seat · turnout 54.5%
| J. Turner | Conservative | 1,559 |
| S. Ward | SLD | 847 |
| D. Allan | Labour | 437 |
Redbourn1 seat · turnout 44.5%
| M. Corley | Conservative | 1,189 |
| P. Schofield | SLD | 574 |
| Chris Lee | Labour | 252 |
Sopwell1 seat · turnout 51.4%
| N. Harris | Labour | 1,248 |
| M. Saunders | SLD | 840 |
| R. Wakerley | Conservative | 431 |
St. Stephens1 seat · turnout 50.4%
| B. Brockhurst | Conservative | 1,542 |
| D. Parry | SLD | 1,018 |
| L. Adams | Labour | 338 |
Verulam1 seat · turnout 51.6%
| N. Woodsmith | Conservative | 1,714 |
| S. White | SLD | 645 |
| J. Bellchambers | Labour | 326 |
Wheathampstead1 seat · turnout 53.0%
| K. Stammers | Conservative | 1,368 |
| D. Whittaker | SLD | 952 |
| K. Spooner | Labour | 264 |
