Before (end of 1978) (45 seats, Elections Centre)
Other 27 · Conservative 10 · The Liberal Party 4 · Labour 4
After (end of 1979) (45 seats, Elections Centre)
Conservative 27 · Other 11 · The Liberal Party 4 · Labour 3
Ward results
Boscawen3 seats · turnout 56.9%
| E. Carlyon | Independent | 1,793 |
| S. Mischler | LIB | 1,678 |
| P. Hewson | Conservative | 1,567 |
| C. Mason | Conservative | 1,116 |
| P. Andrew | MK | 561 |
Chacewater1 seat
| R Lobb | Independent | 0 ✓ |
Feock2 seats
| S. Cox | Conservative | 1,387 |
| F. Trebilcock | Conservative | 1,112 |
| E. Deeble | Independent | 976 |
| P. Jones | Independent | 459 |
Kea1 seat · turnout 82.7%
| C. Penrose | Conservative | 562 |
| W. Wellingham | Independent | 458 |
Moresk2 seats
| D. Ansari | LIB | 0 ✓ |
| G. Smitherman | Conservative | 0 ✓ |
Mylor3 seats · turnout 25.4%
| J. Brown | Conservative | 1,893 |
| M. Dunstan | Independent | 1,271 |
Newlyn1 seat · turnout 80.9%
| C. Cocking | Conservative | 624 |
| G. Callis | Independent | 615 |
Penryn3 seats
| J. Barringer | Labour | 0 ✓ |
| J. Chinn | Conservative | 0 ✓ |
| P. Pollard | Conservative | 0 ✓ |
Penwerris3 seats · turnout 19.4%
| J. Jones | Labour | 1,447 |
| D. Timmins | Labour | 1,162 |
Perranzabuloe3 seats · turnout 63.0%
| A. Tonkin | Independent | 1,720 |
| N. Holman | Conservative | 1,647 |
| R. Bowen | Conservative | 1,030 |
| F. Selby | Independent | 748 |
| E. Pitman | Independent | 712 |
| D. Hyde | Conservative | 695 |
Probus2 seats · turnout 71.1%
| H. Hicks | Conservative | 1,660 |
| J. Harvey | Conservative | 1,120 |
| G. Mannell | Independent | 851 |
Roseland2 seats
| R. Julyan | Independent | 0 ✓ |
| R. Badcock | Conservative | 0 ✓ |
Smithick3 seats · turnout 57.5%
| J. O'Brien | Independent | 1,169 |
| T. Blay | Conservative | 1,103 |
| K. Handley | Conservative | 937 |
| G. McClure | Conservative | 837 |
| G. Bowden | Labour | 685 |
| A. Smart | Labour | 657 |
St Agnes3 seats · turnout 53.6%
| C. Williams | Conservative | 2,034 |
| T. Thewlis | Independent | 1,813 |
| J. White | Independent | 1,763 |
| O. Richards | Independent | 1,191 |
St. Clement1 seat
| G. Willcox | Conservative | 0 ✓ |
Tregolls2 seats · turnout 63.0%
| R. Cox | LIB | 718 |
| E. Merrifield | Independent | 605 |
| A. Fisher | Conservative | 580 |
| V. Macklen | LIB | 570 |
| A. Perrett | Labour | 356 |
Trehaverne3 seats · turnout 53.3%
| M. Pryor | LIB | 1,349 |
| B. Evea | Independent | 1,201 |
| W. Lean | Conservative | 1,156 |
| J. Christie | Conservative | 885 |
| T. Smale | Labour | 624 |
| J. Millington-Wallace | Labour | 342 |
| K. Barradell | Ecol | 272 |
Trevethan3 seats
| N. Fittus | Independent | 1,459 |
| J. Bradley | Conservative | 1,290 |
| P. Finlan | Conservative | 1,199 |
| J. Tiddy | Ind Con | 1,061 |
| D. Martin | Conservative | 1,043 |
| E. Trewin-Wolle | MK | 610 |