Before (end of 1985) (43 seats, Elections Centre)
Labour 24 · Conservative 19 · Other 0 · SDP-Liberal Alliance 0
After (end of 1986) (43 seats, Elections Centre)
Labour 24 · Conservative 17 · SDP-Liberal Alliance 2 · Other 0
Ward results
Brookmans Park & Little Heath1 seat · turnout 48.6%
| B. Storey | Conservative | 1,439 |
| B. Parkinson | Alliance For Local Living (ALL) | 502 |
| D. Dunk | Labour | 156 |
Haldens1 seat · turnout 45.0%
| K. Lounds | Labour | 2,049 |
| A. Ryder | Conservative | 830 |
| D. West | Alliance For Local Living (ALL) | 793 |
Handside2 seats · turnout 61.2%
| M. Cowan | Alliance For Local Living (ALL) | 1,366 |
| T. Skottowe | Alliance For Local Living (ALL) | 1,347 |
| B. Sherriff | Conservative | 1,123 |
| Patricia Storey | Conservative | 1,033 |
| G. Plowman | Labour | 580 |
| K. Steele | Labour | 531 |
Hatfield East1 seat · turnout 47.8%
| R. Cheswright | Conservative | 1,127 |
| N. McClellan | Labour | 988 |
| J. Edell | Alliance For Local Living (ALL) | 651 |
Hatfield North1 seat · turnout 48.2%
| G. Wenham | Labour | 1,050 |
| T. Kirby-Suttie | Conservative | 683 |
| M. Richardson | Alliance For Local Living (ALL) | 483 |
Hatfield West1 seat · turnout 51.9%
| R. Andrews | Labour | 1,123 |
| D. Barrow | Conservative | 936 |
| R. Griffiths | Alliance For Local Living (ALL) | 612 |
Hollybush1 seat · turnout 49.2%
| A. Cogan | Labour | 1,293 |
| J. Aldridge | Conservative | 440 |
| T. Richardson | Alliance For Local Living (ALL) | 421 |
Northaw & Cuffley1 seat · turnout 45.1%
| C. Selous | Conservative | 1,321 |
| A. Skitt | Alliance For Local Living (ALL) | 429 |
| D. May | Labour | 185 |
