Before (end of 1979) (47 seats, Elections Centre)
Conservative 28 · Labour 17 · Other 2 · The Liberal Party 0
After (end of 1980) (47 seats, Elections Centre)
Conservative 27 · Labour 18 · Other 2 · The Liberal Party 0
Ward results
Anderton Heath Charnock & Rivington1 seat · turnout 45.0%
| R. Morris | Conservative | 614 ✓ |
| J. Nuttall | Labour | 262 |
| E. Isaac | LIB | 69 |
| W. Baldwin | Independent | 68 |
| A. Thompson | Ecol | 63 |
Brindle & Hoghton1 seat · turnout 48.0%
| A. Crook | Conservative | 599 |
| P. Wilson | Labour | 92 |
Charnock Richard1 seat · turnout 66.0%
| J. Holt | Conservative | 579 |
| N. Hilton | Labour | 373 |
Chorley East1 seat · turnout 40.0%
| W. Corcoran | Labour | 1,271 |
| P. Malpas | Conservative | 387 |
Chorley North East1 seat · turnout 46.0%
| A. Watmough | Labour | 1,053 |
| A. Crompton | Conservative | 691 |
| V. Fainworth | LIB | 156 |
Chorley North West1 seat · turnout 51.0%
| G. Birtill | Conservative | 1,389 |
| M. Da Costa | Labour | 611 |
| F. Wilson | LIB | 211 |
Chorley South East1 seat · turnout 46.0%
| P. Keane | Labour | 1,284 |
| J. Marsden | Conservative | 682 |
Chorley South West1 seat · turnout 46.0%
| J. Holme | Labour | 1,485 |
| M. Blackburn | Conservative | 399 |
Chorley West1 seat · turnout 54.0%
| R. Snape | Independent | 1,566 |
| M. Brown | Labour | 792 |
Clayton-Le-Woods East1 seat · turnout 37.0%
| B. Robinson | Conservative | 463 |
| R. Hubbold | Labour | 227 |
Eccleston & Heskin1 seat · turnout 50.0%
| C. Horsfield | Conservative | 946 |
| A. Whittaker | Labour | 907 |
| J. Wareing | Ecol | 70 |
Euxton South1 seat · turnout 41.0%
| J. Moorcroft | Conservative | 816 |
| M. Newbury | Labour | 347 |
| R. Prescott | LIB | 130 |
Lostock1 seat · turnout 31.0%
| D. Lambert | Conservative | 665 |
| L. Darlington | Labour | 264 |
Withnell1 seat · turnout 56.0%
| I. Forsyth | Conservative | 770 |
| M. Talbot | Labour | 626 |