Before (end of 1982) (45 seats, Elections Centre)
Conservative 27 · Other 11 · SDP-Liberal Alliance 4 · Labour 3
After (end of 1983) (45 seats, Elections Centre)
Conservative 22 · SDP-Liberal Alliance 12 · Other 10 · Labour 1
Ward results
Arwenack2 seats
| O. White | Conservative | 0 ✓ |
| R. Dunstan | Conservative | 0 ✓ |
Boscawen3 seats
| D. Ansari | Lib/Sdp | 0 ✓ |
| E. Hockin | Independent | 0 ✓ |
| P. Buddell | Conservative | 0 ✓ |
Chacewater1 seat
| R Lobb | Independent | 0 ✓ |
Kea1 seat · turnout 55.5%
| D. Penrose | Conservative | 361 |
| N. Snow | Lib/Sdp | 301 |
Kenwyn2 seats · turnout 33.9%
| F. Dyer | Conservative | 756 |
| M. Holt | Lib/Sdp | 587 |
| G. Robinson | Conservative | 580 |
Moresk2 seats · turnout 46.9%
| G. Smitherman | Conservative | 749 |
| S. Shaw | Lib/Sdp | 725 |
| E. Carlyon | Independent | 463 |
| V. Bennett | Labour | 241 |
Newlyn1 seat · turnout 59.0%
| C. Cocking | Conservative | 545 |
| G. Callis | Independent | 423 |
Penryn3 seats · turnout 28.1%
| J. Chinn | Conservative | 870 |
| J. Barringer | Independent | 664 |
| G. Maccuish | Independent | 618 |
| R. Vinnicombe | Independent | 564 |
| J. Ashwin | Conservative | 555 |
Penwerris3 seats · turnout 22.1%
| D. Martin | Independent | 848 |
| P. Bray | Lib/Sdp | 845 |
| D. Timmins | Labour | 720 |
| G. Townsend-Parker | Independent | 524 |
Perranzabuloe3 seats · turnout 36.3%
| A. Tonkin | Independent | 1,058 |
| N. Holman | Conservative | 810 |
| R. Bowen | Conservative | 748 |
| J. Carpenter | Independent | 712 |
| S. Parker | Independent | 648 |
Probus2 seats · turnout 42.0%
| F. Warne | Lib/Sdp | 837 |
| E. Mileham | Conservative | 760 |
| G. Mannell | Lib/Sdp | 749 |
Roseland2 seats · turnout 54.9%
| R. Julyan | Independent | 1,067 |
| A. Chart | Lib/Sdp | 805 |
| S. Barker | Conservative | 752 |
| L. Potts | Independent | 199 |
Smithick3 seats · turnout 33.4%
| B. Bailey | Lib/Sdp | 770 |
| R. Hicks | Conservative | 740 |
| J. O'Brien | Independent | 643 |
| T. Blay | Conservative | 587 |
| I. Medlyn | Conservative | 506 |
St Agnes3 seats · turnout 35.7%
| F. Cheshire | Lib/Sdp | 1,407 |
| T. Thewlis | Independent | 1,161 |
| G. Honey | Conservative | 1,151 |
| J. White | Independent | 1,140 |
St. Clement1 seat
| G. Richards | Conservative | 0 ✓ |
Tregolls2 seats · turnout 37.1%
| R. Cox | Lib/Sdp | 502 |
| A. Knowles | Lib/Sdp | 459 |
| J. Stone | Conservative | 418 |
| M Payne | Independent | 263 |
| T. Hall | Labour | 126 |
Trehaverne3 seats · turnout 32.9%
| M. Pryor | Lib/Sdp | 930 |
| J. Longhurst | Lib/Sdp | 758 |
| B. Evea | Independent | 715 |
| J. Christie | Conservative | 658 |
| E. Merrifield | Independent | 501 |
| P. Leamon | Labour | 212 |
Trevethan3 seats
| H. Smith | Conservative | 0 ✓ |
| J. Beresford | Conservative | 0 ✓ |
| G. Harrison | Conservative | 0 ✓ |