Before (end of 1975) (72 seats, Elections Centre)
Labour 61 · Conservative 10 · Other 1 · The Liberal Party 0
After (end of 1976) (72 seats, Elections Centre)
Labour 56 · Conservative 14 · The Liberal Party 1 · Other 1
Ward results
No. 1 (Wigan: Lindsay-Scholes-Whelley)1 seat · turnout 33.1%
| A. Coyle | Labour | 1,927 |
| C. Giles | Conservative | 1,126 |
No. 10 (Leigh: Lilford-St. Josephs-St. Thomas)1 seat · turnout 40.1%
| S. Johnson | Conservative | 1,905 |
| P. Smith | Labour | 1,595 |
| M. Fitzpatrick | COMM | 121 |
No. 11 (Golborne: St. Thomas & Lowton)1 seat · turnout 39.7%
| T. Morgan | Labour | 2,409 |
| T. Thompson | Conservative | 1,696 |
No. 12 (Golborne: Heath Park & Abram)1 seat · turnout 37.9%
| M. Taylor | Labour | 2,395 |
| J. Harrison | Conservative | 1,015 |
No. 13 (Ashton-In-Makerfield:north & West)1 seat · turnout 32.0%
| G. Lockett | Labour | 1,648 |
| P. Scully | LIB | 789 |
No. 14 (Ashton-In-Makerfield:central & East)1 seat · turnout 37.9%
| Tony Jones | Labour | 1,655 |
| M. Ball | Conservative | 915 |
| D. Gauld | LIB | 586 |
No. 15 (Standish-With-Langtree & Shevington)1 seat · turnout 38.8%
| G. Dewhurst | Independent | 1,534 |
| J. Healen | Labour | 1,509 |
| M. Wardle | Conservative | 1,222 |
No. 16 (Aspull)1 seat · turnout 34.2%
| W. Mason | Labour | 1,540 |
| E. Slevin | Conservative | 1,424 |
| P. Gibbons | LIB | 448 |
No. 17 (Atherton: North East)1 seat · turnout 33.5%
| L. Sumner | Labour | 2,121 |
| E. Sweeney | Conservative | 1,068 |
No. 18 (Atherton: South West)1 seat · turnout 37.6%
| Marion Williams | Conservative | 1,431 |
| P. Needham | Labour | 981 |
No. 19 (Hindley: Central & North)1 seat · turnout 28.1%
| T. Isherwood | Labour | 1,410 |
| R. Parkes | Conservative | 704 |
No. 2 (Wigan: Poolstock-Worsley Mesnes)1 seat · turnout 24.7%
| H. Milligan | Labour | 1,419 |
| Judith Atherton | Conservative | 536 |
| J. Forster | LIB | 314 |
No. 20 (Hindley: South-East-West)1 seat · turnout 30.0%
| R. McAllister | Labour | 1,573 |
| T. Whitfield | Conservative | 1,231 |
| B. Slinger | LIB | 355 |
| A. Rowlandson | Labour | 0 ✓ |
No. 22 (Orrell & Billinge)1 seat · turnout 32.5%
| F. Garner | Conservative | 1,897 ✓ |
| S. Waring | Labour | 1,507 |
| N. Somers | Independent | 504 |
| A. Atherton | ER | 392 |
No. 23 (Tyldesley: Shakerley)1 seat · turnout 38.5%
| M. Devlin | Labour | 1,761 |
| F Mellor | Conservative | 1,516 |
No. 24 (Tyldesley: Astley Green & Blackmoor)1 seat · turnout 42.6%
| C. Hampson | Conservative | 1,802 |
| F. Walker | Labour | 1,448 |
No. 3 (Wigan: Gidlow-Swinley-Whitley)1 seat · turnout 33.4%
| G. Lewthwaite | Conservative | 2,665 |
| M. Pendleton | Labour | 1,187 |
| A. Eckersley | Labour | 0 ✓ |
No. 5 (Wigan: Highfield & Lamberhead)1 seat · turnout 26.4%
| E. Maddocks | Labour | 1,544 |
| T Peet | Conservative | 1,348 |
No. 6 (Wigan: Newtown & Rose Hill)1 seat · turnout 27.4%
| J. Bridge | Labour | 1,483 |
| M. Wright | Conservative | 670 |
| J. Fitzpatrick | LIB | 240 |
No. 7 (Leigh: Hope Carr)1 seat · turnout 44.9%
| B. Powell | Conservative | 1,770 |
| J. Jones | Labour | 1,377 |
No. 8 (Leigh: St. Pauls & St. Peters)1 seat · turnout 25.8%
| P. Hull | Labour | 1,336 |
| J Davies | Conservative | 842 |
| H. Kedward | COMM | 92 |
No. 9 (Leigh: Etherstone & St. Marys)1 seat · turnout 35.4%
| J. Riley | Labour | 1,674 |
| H. Davies | Conservative | 1,477 |
| J. Blackburn | COMM | 96 |
