Before (end of 1978) (66 seats, Elections Centre)
Conservative 39 · Labour 27 · The Liberal Party 0 · Other 0
After (end of 1979) (60 seats, Elections Centre)
Conservative 33 · Labour 26 · Other 1 · The Liberal Party 0
Ward results
Budshead3 seats
| T Keast | Labour | 3,741 ✓ |
| E Thomas | Labour | 3,720 ✓ |
| R Simmonds | Labour | 3,598 ✓ |
| H Hughes | Conservative | 2,271 |
| D Macmillan | Conservative | 2,049 |
| B Yardley | Conservative | 2,003 |
Compton3 seats · turnout 67.1%
| G. Creber | Conservative | 4,466 |
| R. Ray | Conservative | 4,299 |
| F. Milligan | Conservative | 4,292 |
| B. Sabel | Labour | 1,457 |
| P. Lovell | Labour | 1,450 |
| P. Ingham | Labour | 1,417 |
Drake3 seats
| D Mitchell | Conservative | 4,461 ✓ |
| J. Thorpe | Conservative | 3,837 ✓ |
| Thomas Savery | Conservative | 3,768 ✓ |
| N Crowley | Labour | 2,138 |
| S Caylor | Labour | 2,083 |
| E Clinick | Labour | 2,079 |
| J Robins | LIB | 953 |
| R Pawley | LIB | 948 |
| P Rouse | NF | 175 |
Efford3 seats
| R King | Labour | 3,083 ✓ |
| G Draper | Labour | 2,907 ✓ |
| James Leppard | Labour | 2,837 ✓ |
| J Richards | Conservative | 2,443 |
| E Smith | Conservative | 2,348 |
| E Willcock | Conservative | 2,182 |
| J Pocock | NF | 201 |
Eggbuckland3 seats · turnout 71.8%
| Jane Pascoe | Conservative | 3,736 |
| D. Mackinem | Conservative | 3,460 |
| R. Morrell | Conservative | 3,388 |
| D. Tranter | Labour | 2,392 |
| M. Hughes | Labour | 2,386 |
| D. Knott | Labour | 2,337 |
Estover3 seats
| T Jones | Conservative | 3,664 ✓ |
| R Elliot | Conservative | 3,564 ✓ |
| M Lacey | Conservative | 3,530 ✓ |
| E Evans | Labour | 2,292 |
| W Leahy | Labour | 2,285 |
| M Gilbert | Labour | 2,220 |
Ham3 seats
| A Floyd | Labour | 3,622 ✓ |
| K Glanville | Labour | 3,375 ✓ |
| W Glanville | Labour | 3,284 ✓ |
| J Farrage | Conservative | 2,002 |
| V Hingston | Conservative | 1,957 |
| Graham Lawrence | Conservative | 1,941 |
| D Merry | NF | 215 |
Honicknowle3 seats · turnout 71.8%
| P. Whitfeld | Labour | 4,187 |
| H. Dolley | Labour | 4,010 |
| J. Ingham | Labour | 3,690 |
| M. Brown | Conservative | 3,035 |
| T. Johnson | Conservative | 2,907 |
| A. Jarvis | Conservative | 2,793 |
| D. Stentiford | NF | 261 |
Keyham3 seats · turnout 63.0%
| D. Manley | Labour | 2,853 |
| R. Lemin | Labour | 2,850 |
| H. Fox | Conservative | 2,774 |
| D. Yeates | Labour | 2,726 |
| M. Glanville | Conservative | 2,622 |
| E. Pengelly | Conservative | 2,612 |
| J. Blake | NF | 301 |
Mount Gould3 seats
| J Courtney | Conservative | 3,500 ✓ |
| E Thornton | Conservative | 3,331 ✓ |
| R Thornton | Conservative | 3,291 ✓ |
| L Hill | Labour | 2,388 |
| John Finnigan | Labour | 2,302 |
| W Payne | Labour | 2,226 |
Plympton Erle3 seats
| J Mills | Conservative | 3,327 ✓ |
| A Wright | Conservative | 3,297 ✓ |
| J Richards | Conservative | 3,145 ✓ |
| Jack Fildew | Labour | 1,777 |
| C Bishop | Labour | 1,505 |
| J Sewell | Labour | 1,482 |
| J Kingdom | Ind Con | 1,001 |
| R Cornforth | Ind Con | 741 |
Plympton St. Mary3 seats · turnout 68.1%
| P. Radmore | Ind Con | 2,949 ✓ |
| M. Parkinson | Conservative | 2,207 ✓ |
| K. Perry | Conservative | 2,193 ✓ |
| D. Thompson | Conservative | 1,624 |
| L. Speare | Ind Con | 1,618 |
| L. Finn | LIB | 1,498 |
| W. Gross | Labour | 1,448 |
| A. De Launey | Labour | 1,346 |
| S. Clark | Labour | 1,274 |
| D. Tice | LIB | 1,063 |
Plymstock Dunstone3 seats
| Dennis Dicker | Conservative | 4,461 ✓ |
| David Viney | Conservative | 4,197 ✓ |
| P Hocken | Conservative | 4,144 ✓ |
| E Hill | Labour | 1,507 |
| Jonathon Edward Cowan | Labour | 1,400 |
| W Williamson | Labour | 1,385 |
Plymstock Radford3 seats
| C Easton | Conservative | 3,639 ✓ |
| R Easton | Conservative | 3,524 ✓ |
| O Kendall | Conservative | 2,956 ✓ |
| Terence Telford | Labour | 1,544 |
| M Telford | Labour | 1,531 |
| Liz Haines | Labour | 1,244 |
| R Loxley | LIB | 1,152 |
| J Byatt | LIB | 1,084 |
| C Tice | LIB | 1,002 |
Southway3 seats
| W Evans | Labour | 3,467 ✓ |
| R Scott | Labour | 3,226 ✓ |
| J Jones | Labour | 3,123 ✓ |
| R Billings | Conservative | 2,723 |
| M Lippell | Conservative | 2,632 |
| H Hennessey | Conservative | 2,486 |
| J Price | NF | 136 |
St Budeaux3 seats · turnout 71.7%
| R. Bishop | Labour | 3,032 ✓ |
| H. Luscombe | Labour | 3,015 ✓ |
| I. Rosevear | Labour | 2,974 ✓ |
| E. Deacon | Conservative | 2,553 |
| T. Docking | Conservative | 2,505 |
| G. Howe | Conservative | 2,437 |
| L. Beresford-Walker | National Front | 149 |
St. Peter3 seats · turnout 59.6%
| I. Lowe | Labour | 3,324 |
| H. Clinick | Labour | 3,294 |
| J. Luce | Labour | 3,217 |
| G. Baker | Conservative | 2,034 |
| E. Diggle | Conservative | 1,915 |
| T. Wilks | Conservative | 1,817 |
| E. Lynch | NF | 228 |
St.Budeaux3 seats
| R Bishop | Labour | 3,032 |
| H Luscombe | Labour | 3,015 |
| I Rosevear | Labour | 2,974 |
| E Deacon | Conservative | 2,553 |
| T Docking | Conservative | 2,505 |
| G Howe | Conservative | 2,437 |
| L Beresford-Walker | NF | 149 |
Stoke3 seats · turnout 66.9%
| C. Pascoe | Conservative | 4,148 |
| N. Washbourn | Conservative | 4,043 |
| S. Wilbraham | Conservative | 3,984 |
| L. Huckett | Labour | 2,676 |
| T. Caylor | Labour | 2,462 |
| W. Hennah | Labour | 2,416 |
| D. Radmore | NF | 478 |
Sutton3 seats · turnout 60.9%
| F. Johnson | Labour | 2,695 ✓ |
| F. Freeman | Labour | 2,665 ✓ |
| J. Lobb | Labour | 2,591 ✓ |
| G. Blades | Conservative | 2,455 |
| J. Hingston | Conservative | 2,216 |
| W. Turner | Conservative | 2,040 |
| P. York | LIB | 862 |
| G. Pedrick | LIB | 639 |
| K. Rawlings | LIB | 600 |
| J. Williams | NF | 140 |
Trelawny3 seats · turnout 75.7%
| G. Jinks | Conservative | 3,625 |
| A. Parish | Conservative | 3,583 |
| W. Thompson | Conservative | 3,249 |
| P. Floyd | Labour | 2,737 |
| L. Goldstone | Labour | 2,356 |
| T. Saunders | Labour | 2,261 |
| K. Gardiner | Ind Con | 801 |
| S. Merry | NF | 154 |
