Before (end of 1978) (72 seats, Elections Centre)
Labour 50 · Conservative 20 · Other 1 · The Liberal Party 1
After (end of 1979) (72 seats, Elections Centre)
Labour 55 · Conservative 15 · The Liberal Party 1 · Other 1
Ward results
No. 1 (Wigan: Lindsay-Scholes-Whelley)1 seat · turnout 74.4%
| M. Pratt | Labour | 4,517 |
| C. Giles | Conservative | 2,206 |
No. 10 (Leigh: Lilford-St. Josephs-St. Thomas)1 seat · turnout 76.0%
| J. Jones | Labour | 3,440 |
| M. Wood | Conservative | 3,260 |
No. 11 (Golborne: St. Thomas & Lowton)1 seat · turnout 77.7%
| B. Strett | Labour | 4,120 |
| T. Thompson | Conservative | 3,131 |
| A. Nixon | LIB | 949 |
No. 12 (Golborne: Heath Park & Abram)1 seat · turnout 78.8%
| A Miller | Labour | 4,540 |
| J. Harrison | Conservative | 2,503 |
No. 13 (Ashton-In-Makerfield:north & West)1 seat · turnout 75.4%
| R. Lyons | Labour | 3,755 |
| B. Smith | Conservative | 1,941 |
No. 14 (Ashton-In-Makerfield:central & East)1 seat · turnout 75.0%
| R. McEntegart | Labour | 3,815 |
| S. Hibbert | Conservative | 3,110 |
No. 15 (Standish-With-Langtree & Shevington)1 seat · turnout 80.7%
| J. Pigot | LIB | 4,043 |
| J. Hardy | Labour | 3,327 |
| E. Howard | Conservative | 2,555 |
No. 16 (Aspull)1 seat · turnout 80.5%
| A. Singer | Labour | 3,860 |
| J. Blackledge | Conservative | 3,122 |
| E. Hill | LIB | 1,093 |
No. 17 (Atherton: North East)1 seat · turnout 73.5%
| W. Murphy | Labour | 4,712 |
| M. Sharland | Conservative | 2,434 |
No. 18 (Atherton: South West)1 seat · turnout 77.8%
| J. Sumner | Labour | 2,891 |
| W. Perrin | Conservative | 2,246 |
No. 19 (Hindley: Central & North)1 seat · turnout 75.8%
| A. Robinson | Labour | 3,826 |
| M. Lunt | Conservative | 1,457 |
| P. Gibbons | LIB | 328 |
No. 2 (Wigan: Poolstock-Worsley Mesnes)1 seat · turnout 70.0%
| H. Antill | Labour | 4,643 |
| R. Rogers | Conservative | 2,311 |
No. 20 (Hindley: South-East-West)1 seat · turnout 75.4%
| T. Wynn | Labour | 5,214 |
| J. Culshaw | Conservative | 3,167 |
No. 21 (Ince-In-Makerfield)1 seat · turnout 69.5%
| A. Banks | Labour | 5,627 |
| M. Jones | Conservative | 2,008 |
No. 22 (Orrell & Billinge)2 seats · turnout 69.5%
| F. Fairbairn | Conservative | 4,958 |
| R. Capstick | Labour | 4,198 |
| M. Fox | Conservative | 4,040 |
| E. Nickeas | Labour | 3,567 |
| J. Fitzpatrick | LIB | 1,542 |
| C. Hughes | RES | 1,084 |
No. 23 (Tyldesley: Shakerley)1 seat · turnout 76.6%
| A. Wright | Labour | 3,814 |
| J. Davies | Conservative | 3,152 |
No. 24 (Tyldesley: Astley Green & Blackmoor)1 seat · turnout 80.4%
| F. Hampson | Labour | 3,220 |
| H. Davies | Conservative | 3,114 |
No. 3 (Wigan: Gidlow-Swinley-Whitley)1 seat · turnout 73.9%
| W. France | Conservative | 3,989 ✓ |
| K. Green | Labour | 2,423 |
| M. McElligott | RES | 1,244 |
| P. Davies | LIB | 691 |
No. 4 (Wigan: Beech Hill & Marsh Green)1 seat · turnout 72.7%
| N. Turner | Labour | 4,869 |
| W. Banister | Conservative | 2,016 |
No. 5 (Wigan: Highfield & Lamberhead)1 seat · turnout 73.3%
| J. Smith | Labour | 4,886 |
| A. Foster | Conservative | 3,395 |
No. 6 (Wigan: Newtown & Rose Hill)1 seat · turnout 71.3%
| M. Milligan | Labour | 4,327 |
| R. Bell | Conservative | 1,830 |
No. 7 (Leigh: Hope Carr)1 seat · turnout 77.5%
| D. Powell | Conservative | 2,960 |
| H. Smith | Labour | 2,564 |
No. 8 (Leigh: St. Pauls & St. Peters)1 seat · turnout 69.7%
| A Robert | Labour | 4,269 |
| W. Lackenby | Conservative | 1,902 |
| H. Kedward | COMM | 154 |
No. 9 (Leigh: Etherstone & St. Marys)1 seat · turnout 74.5%
| D. Caley | Labour | 3,760 |
| H. Yates | Conservative | 2,989 |
