Before (end of 1985) (34 seats, Elections Centre)
Other 25 · Conservative 6 · Labour 2 · SDP-Liberal Alliance 1
After (end of 1986) (34 seats, Elections Centre)
Other 16 · Conservative 11 · Labour 5 · SDP-Liberal Alliance 2
Ward results
Hayle-Gwithian1 seat · turnout 44.4%
| C. Philp | Labour | 754 ✓ |
| M. Reynolds | Conservative | 504 |
| R. Lello | Independent | 243 |
| M. Wagstaff | Lib/Sdp | 205 |
Lelant and Carbis Bay1 seat · turnout 42.6%
| B. Hicks | Conservative | 604 ✓ |
| K. Matthews | Lib/Sdp | 549 |
Ludgvan1 seat · turnout 33.0%
| I. Bailey | Independent | 787 ✓ |
| G. Kitchener | Green | 349 |
Penzance Central1 seat · turnout 48.5%
| C. Lawry | MK | 809 ✓ |
| D. Eddy | Conservative | 606 |
Penzance East1 seat · turnout 52.7%
| W. Rogers | Conservative | 891 ✓ |
| J. Drew | MK | 755 |
| G. Howes | Lib/Sdp | 437 |
Penzance North1 seat · turnout 55.3%
| S. Warren | Labour | 503 ✓ |
| G. Richards | Lib/Sdp | 496 |
| D. Marsh | Conservative | 434 |
Penzance South1 seat · turnout 46.4%
| I. Nicholas | Conservative | 878 ✓ |
| J. Dixon | Lib/Sdp | 792 |
Penzance West1 seat · turnout 60.7%
| Yates C. | Conservative | 729 ✓ |
| P. Mates | Labour | 671 |
| J. Halkes | Lib/Sdp | 363 |
Perranuthnoe1 seat · turnout 52.7%
| J. Jago | Independent | 459 ✓ |
| E. Tregenza | Lib/Sdp | 189 |
| B. Anderson | Green | 25 |
St Just1 seat · turnout 59.4%
| R Roddan | Labour | 1,104 ✓ |
| D. Woolcock | Conservative | 797 |
St. Ives North1 seat · turnout 46.2%
| M. Peters | Lib/Sdp | 476 ✓ |
| S. Beck | Labour | 425 |
| J. Gilpin | Conservative | 417 |