Before (end of 1997)
Not known.
After (end of 1998)
Not known.
Ward results
Clarence1 seat
| W. Niblett | Labour | 597 |
| J. Christie | Conservative | 279 |
Colney Heath1 seat
| David Jeffreys | Conservative | 262 |
| G. Watson | Labour | 260 |
Harpenden East1 seat
| D. Waddilove | Liberal Democrats | 769 |
| V. Holley | Conservative | 665 |
| D. Crew | Labour | 329 |
Harpenden North1 seat
| A. Pawle | Conservative | 759 |
| R. Botterill | Labour | 314 |
London Colney1 seat
| S. Flynn | Labour | 1,094 |
| M. Shaw | Conservative | 260 |
| D. Priestman | Liberal Democrats | 179 |
Park Street1 seat
| K. Batson | Conservative | 396 |
| M. Morley | Labour | 338 |
Verulam1 seat
| J. Smith | Conservative | 1,150 |
| R. Mort | Liberal Democrats | 822 |
| J. Brenton | Labour | 370 |