Before (end of 1983) (34 seats, Elections Centre)
Other 26 · Conservative 5 · SDP-Liberal Alliance 2 · Labour 1
After (end of 1984) (34 seats, Elections Centre)
Other 25 · Conservative 6 · Labour 2 · SDP-Liberal Alliance 1
Ward results
Hayle-Gwinear1 seat · turnout 37.1%
| H. Laity | Independent | 429 |
| C. Philp | Independent | 401 |
| B. Monkhouse | Conservative | 181 |
Hayle-Gwithian1 seat · turnout 29.0%
| O Philp | Independent | 477 |
| M. Reynolds | Conservative | 412 |
| M. Wagstaff | Lib/Sdp | 206 |
Ludgvan1 seat · turnout 33.1%
| J. Vincent | Independent | 830 |
| P. Mates | Labour | 310 |
Penzance Central1 seat · turnout 44.9%
| T. Knowles | Conservative | 735 |
| M. Cotton | Lib/Sdp | 588 |
Penzance East1 seat · turnout 41.1%
| Owen G. | Conservative | 654 ✓ |
| J. Drew | MK | 418 |
| A. Robinson | Lib/Sdp | 245 |
| T. Richards | Independent | 220 |
| T. Lawrence | Independent | 53 |
Penzance North1 seat · turnout 38.4%
| A. Richards | Lib/Sdp | 441 |
| D Milton | Conservative | 413 |
Penzance South1 seat
| H. Ruhrmund | Independent | 0 ✓ |
Penzance West1 seat · turnout 46.6%
| I. Hope | Labour | 516 ✓ |
| A. Berryman | Independent | 390 |
| B. Rabbitte | Conservative | 269 |
| C. Murley | MK | 170 |
St. Ives South1 seat · turnout 46.1%
| H. Storer | Conservative | 772 ✓ |
| I. Pulley | Labour | 172 |
| O Eddy | Independent | 105 |
| P. Triffitt | Lib/Sdp | 46 |
| J. Allen | Independent | 45 |
