Before (end of 1986) (41 seats, Elections Centre)
Conservative 16 · Other 9 · SDP-Liberal Alliance 8 · Labour 8
After (end of 1987) (41 seats, Elections Centre)
SDP-Liberal Alliance 15 · Labour 11 · Conservative 11 · Other 4
Ward results
Cleethorpes Beacon Hill3 seats
| N Cole | Lib/Sdp | 1,278 ✓ |
| P Bullivant | Lib/Sdp | 1,205 ✓ |
| B Smith | Lib/Sdp | 1,114 ✓ |
| D. Leam | Conservative | 648 |
| M Clayton | Labour | 572 |
| D Webster | Lib/Sdp | 549 |
| J Stark | Labour | 533 |
| P Proctor | Labour | 532 |
| J Williamson | Labour | 515 |
| A McCabe | Labour | 496 |
| A Cowood | Lib/Sdp | 485 |
| C Eastwell | Lib/Sdp | 480 |
| C Lambert | Labour | 479 |
| R. Sate | Independent | 284 |
| B Freeman | Independent | 264 |
| Cleethorpes | Central | 0 |
Cleethorpes Central3 seats · turnout 55.0%
| D. Leam | Conservative | 648 ✓ |
| D. Webster | SDP-Liberal Alliance | 549 ✓ |
| J. Stark | Labour | 533 ✓ |
| P. Proctor | Labour | 532 |
| J. Williamson | Labour | 515 |
| A. Cowood | SDP-Liberal Alliance | 485 |
| C. Eastwell | SDP-Liberal Alliance | 480 |
| R. Sate | Independent | 284 |
| B. Freeman | Independent | 264 |
Cleethorpes Thrunscoe3 seats
| J. Ambler | Conservative | 991 ✓ |
| M Cracknell | Conservative | 866 ✓ |
| E Parkinson | Conservative | 859 ✓ |
| K Teakle | Lib/Sdp | 685 |
| J Carter | Lib/Sdp | 683 |
| M Hancock | Lib/Sdp | 598 |
| P McCabe | Labour | 264 |
| Doreen Johnstone | Labour | 209 |
| M Wilcock | Labour | 202 |
Habrough & Stallingborough1 seat · turnout 56.5%
| C. Hunsley | Conservative | 584 |
| P. Johnson | Independent | 154 |