Before (end of 1977) (56 seats, Elections Centre)
Conservative 39 · Labour 14 · Other 3 · The Liberal Party 0
After (end of 1978) (63 seats, Elections Centre)
Conservative 46 · Labour 12 · Other 4 · The Liberal Party 1
Ward results
Canons3 seats · turnout 46.0%
| F. Rees | Conservative | 2,132 ✓ |
| V. Joels | Conservative | 2,127 ✓ |
| N. Rees | Conservative | 2,065 ✓ |
| J. Galvin | Labour | 894 |
| J. McKeown | Labour | 867 |
| S. Nunan | Labour | 835 |
Centenary3 seats · turnout 42.1%
| R. Bradshaw | Conservative | 1,853 |
| B. Ford | Conservative | 1,777 |
| A. Malin | Conservative | 1,740 |
| H. Higgins | Labour | 984 |
| A. Angiolini | Labour | 978 |
| G. Temple | Labour | 941 |
| W. Boothby | LIB | 211 |
| R. Pinkus | LIB | 135 |
Greenhill3 seats
| D. Hart | Conservative | 1,473 |
| J. Campbell | Conservative | 1,462 |
| R. Martin | Conservative | 1,429 |
| A. Elderton | Labour | 1,003 |
| P. Hamill | Labour | 950 |
| R. Kingsbury | Labour | 923 |
| S. Lakmaker | LIB | 409 |
| B. Lidington | LIB | 359 |
| D. Bruce | LIB | 335 |
Harrow on the Hill3 seats · turnout 40.8%
| P Pitt | Conservative | 1,879 |
| N. Watson | Conservative | 1,860 |
| D. Rogers | Conservative | 1,850 |
| H. Hatfield | Labour | 679 |
| D. Howard | Labour | 643 |
| Lanie Shears | Labour | 626 |
| R. | LIB | 285 |
| E. Johnson-Sabine | LIB | 273 |
| R. Bailey | LIB | 257 |
Harrow Weald3 seats
| A. Macrae | Conservative | 1,723 ✓ |
| W. Reece | Conservative | 1,667 ✓ |
| D. Stevens | Conservative | 1,658 ✓ |
| H. Cooper | LIB | 1,423 |
| K. Higgins | LIB | 1,295 |
| M. Osborne | LIB | 1,218 |
| K. Burchell | Labour | 927 |
| J. Munday | Labour | 904 |
| M. Kinsey | Labour | 903 |
| M. Burton | NF | 130 |
| D. Woodruff | NF | 98 |
| E. List | NF | 97 |
| R. Ward | COMM | 38 |
Hatch End3 seats · turnout 48.1%
| D. Abbott | Conservative | 2,535 ✓ |
| M. Nutt | Conservative | 2,484 ✓ |
| P. Kane | Conservative | 1,479 ✓ |
| R. Beech | Labour | 598 |
| R. Trott | Labour | 575 |
| C. Vahrman | Labour | 565 |
Headstone North3 seats · turnout 49.2%
| N. Hines | Conservative | 2,429 |
| A. Strevens | Conservative | 2,408 |
| F. Weare | Conservative | 2,290 |
| E. Bull | RATE | 1,250 |
| D. Wiseman | LIB | 520 |
| E. James | Labour | 511 |
| M. Appleford | LIB | 493 |
| W. Hodges | Labour | 491 |
| M. Kingsbury | Labour | 444 |
Headstone South3 seats · turnout 50.5%
| G. Hyams | Residents | 1,471 ✓ |
| E. Buckle | Conservative | 1,281 ✓ |
| S. Giles-Medhurst | The Liberal Party | 1,219 ✓ |
| G. Gould | Conservative | 1,196 |
| C. Thomas | The Liberal Party | 1,127 |
| S. Finn | Labour | 891 |
| I. Forrest | Labour | 890 |
| D. Hillas | Labour | 854 |
Kenton East3 seats
| B. Cohen | Labour | 1,843 ✓ |
| E. Davies | Labour | 1,760 ✓ |
| A. Toms | Labour | 1,607 ✓ |
| P. Clifford | Conservative | 1,310 |
| E. Chappell | Conservative | 1,227 |
| B. Fraher | LIB | 266 |
| L. Le Croissette | NF | 205 |
| I. Osborne | LIB | 197 |
| J. Pointer | NF | 183 |
| R. Pearson | NF | 178 |
Kenton West3 seats · turnout 50.6%
| A. Cocksedge | Conservative | 2,334 ✓ |
| E. Feakins | Conservative | 2,300 ✓ |
| A. Turner | Conservative | 2,264 ✓ |
| A. Finlay | Labour | 960 |
| L. Nixon | Labour | 942 |
| A. Watts | Labour | 903 |
| E. Crawley-Moore | The Liberal Party | 391 |
| H. Lewis | The Liberal Party | 346 |
| R. Montgomerie | The Liberal Party | 330 |
Marlborough3 seats · turnout 47.2%
| B. Elliott | Labour | 1,524 ✓ |
| R. Curtis | Conservative | 1,487 ✓ |
| R. Elliott | Labour | 1,476 ✓ |
| W. Prescott | Conservative | 1,459 |
| L. Harsant | Conservative | 1,442 |
| A. Tidmarsh | Labour | 1,409 |
| P. Jeffery | The Liberal Party | 227 |
| M. Bunyan | The Liberal Party | 210 |
| A. Wilson | The Liberal Party | 206 |
Pinner3 seats · turnout 47.2%
| O. Cock | Conservative | 2,641 ✓ |
| M. Crick | Conservative | 2,609 ✓ |
| D. Amos | Conservative | 2,601 ✓ |
| F. Flower | Labour | 547 |
| V. Doe | Labour | 538 |
| L. Flower | Labour | 504 |
Pinner West3 seats · turnout 47.6%
| A. Sellers | Conservative | 2,516 ✓ |
| D. Clark | Conservative | 2,514 ✓ |
| M. Leigh | Conservative | 2,376 ✓ |
| L. Harries | Labour | 482 |
| P. Trott | Labour | 477 |
| I. Short | Labour | 471 |
| J. Green | The Liberal Party | 356 |
| I. Green | The Liberal Party | 347 |
| A. Davis | The Liberal Party | 329 |
Rayners Lane3 seats · turnout 45.8%
| J. Kirk | Conservative | 2,111 ✓ |
| W. Garvey | Conservative | 2,095 ✓ |
| I. Koller | Conservative | 2,074 ✓ |
| P. Snowden | Labour | 702 |
| W. Stephenson | Labour | 656 |
| D. Tarl | Labour | 640 |
| G. Davis | The Liberal Party | 328 |
| C. Thomas | The Liberal Party | 321 |
| P. Barnham | The Liberal Party | 311 |
Ridgeway3 seats · turnout 47.0%
| J. Bint | Conservative | 1,872 ✓ |
| C. Bednell | Conservative | 1,834 ✓ |
| D. Deanshaw | Conservative | 1,809 ✓ |
| E. Parker | Labour | 934 |
| A. Newby | Labour | 921 |
| I. Wonacott | Labour | 899 |
| M. Albury | The Liberal Party | 319 |
| R. Albury | The Liberal Party | 312 |
| R. Rose | The Liberal Party | 308 |
| G. Addy | National Front | 109 |
| A. White | National Front | 97 |
| J. O'Connell | National Front | 95 |
Roxbourne3 seats · turnout 52.1%
| R. Knowles | Conservative | 1,502 ✓ |
| H. Underwood | Labour | 1,473 ✓ |
| J. Heaton | Conservative | 1,458 ✓ |
| K. Underwood | Labour | 1,455 |
| R. Myers | Conservative | 1,424 |
| C. Davies | Labour | 1,263 |
| L. Forder | Residents | 579 |
| A. Woods | Residents | 542 |
| G. Davies | Residents | 373 |
| E. Colledge | The Liberal Party | 259 |
| J. Bolton | Residents | 110 |
| A. Harding | National Front | 107 |
| R. Barnes | National Front | 107 |
| S. Burton | Residents | 105 |
| B. Warshaw | Residents | 93 |
Roxeth3 seats · turnout 51.0%
| J. Cripps | RATE | 1,595 ✓ |
| D. Tyler | RATE | 1,493 ✓ |
| A. Hamlin | RATE | 1,486 ✓ |
| J. McDonald | Conservative | 1,283 |
| G. Myers | Conservative | 1,245 |
| B. Steele | Conservative | 1,212 |
| A. Bruce | Labour | 1,120 |
| L. Beaumont | Labour | 1,097 |
| H. Reed | Labour | 1,004 |
| C. Lockwood | LIB | 280 |
Stanmore Park3 seats · turnout 43.0%
| M. Carmody | Conservative | 2,349 ✓ |
| D. Rouse | Conservative | 2,342 ✓ |
| D. Wells | Conservative | 2,330 ✓ |
| M. Collins | Labour | 603 |
| B. Pegg | Labour | 588 |
| J. Pegg | Labour | 565 |
Stanmore South3 seats · turnout 45.2%
| R. Collins | Labour | 1,968 ✓ |
| A. Bradshaw | Labour | 1,961 ✓ |
| W. Short | Labour | 1,839 ✓ |
| W. Harris | Conservative | 1,283 |
| P. Hards | Conservative | 1,271 |
| P. Locke | Conservative | 1,257 |
| B. Franklin | NF | 200 |
| P. Harding | NF | 195 |
| K. Woodings | NF | 147 |
| K. Taylor | Independent | 83 |
Wealdstone3 seats · turnout 43.1%
| C. Harrison | Labour | 1,390 ✓ |
| S. Aitken | Labour | 1,377 ✓ |
| S. Roan | Labour | 1,277 ✓ |
| J. Hall | Conservative | 1,010 |
| Alison Jones | Conservative | 980 |
| J. White | Conservative | 975 |
| R. Bancroft | LIB | 687 |
| S. Bruce | LIB | 628 |
| C. Bhatiani | LIB | 582 |
| D. Hyland | WRP | 62 |
Wemborough3 seats · turnout 48.5%
| G. Colbourne Hill | Conservative | 1,632 ✓ |
| R. Denney | Conservative | 1,608 ✓ |
| E. Harkett | Conservative | 1,542 ✓ |
| D. Cox | RATE | 1,372 |
| J. Dennis | RATE | 1,354 |
| P. Warren | RATE | 1,352 |
| D. Brough | Labour | 501 |
| G. Angiolini | Labour | 482 |
| S. Tingle | Labour | 449 |
| B. Cannon | LIB | 107 |
| M. Lievesley | LIB | 80 |
| S. Johnson | LIB | 78 |
