Before (end of 1979) (55 seats, Elections Centre)
Conservative 34 · Labour 10 · The Liberal Party 7 · Other 4
After (end of 1980) (55 seats, Elections Centre)
Conservative 32 · Labour 10 · The Liberal Party 9 · Other 4
Ward results
Allington1 seat
| M. Black | LIB | 1,012 |
| A. Wilkins | Conservative | 831 |
| S. Griffiths | Labour | 142 |
Bearsted1 seat
| J. Bedson | Conservative | 1,187 |
| J. Sinclair | LIB | 364 |
| D. Johnson | Labour | 202 |
Boughton Monchelsea1 seat
| T. Thompson | Conservative | 524 |
| I. Ellis | LIB | 517 |
| E. Jordan | Labour | 46 |
Coxheath1 seat
| E. Stanley | LIB | 684 |
| J. Mepsted | Conservative | 442 |
| R. Matz | Labour | 117 |
East1 seat
| C. McKenna | LIB | 852 ✓ |
| C. Mickleburgh | Conservative | 752 |
| D. Moses | Labour | 329 |
| A. Glanville | NF | 10 |
Headcorn1 seat
| M. Collingwood | Conservative | 704 ✓ |
| M. Holroyd | LIB | 440 |
| D. Knowles | Labour | 143 |
| W. Parrish | NF | 14 |
High Street1 seat
| R. Ellwood | Conservative | 652 ✓ |
| G. Carey | Labour | 637 |
| S. Long | LIB | 358 |
| A. Russell | NF | 22 |
Marden1 seat
| J. Banks | Independent | 751 |
| B. Fosberry | LIB | 245 |
| J. Jordan | Labour | 80 |
NORTH1 seat
| M. Bowerbank | LIB | 976 ✓ |
| K. Woollven | Conservative | 737 |
| J. Hazelgrove | Labour | 496 |
| A. King | NF | 22 |
Park Wood1 seat
| J. Morrison | Labour | 977 |
| M. Basham | Conservative | 585 |
| P. Cordingley | NF | 40 |
Shepway East1 seat
| D. Mills | Labour | 881 |
| M. Robertson | LIB | 341 |
Shepway West1 seat
| P. Lewis | Labour | 1,166 |
| D. Parvin | Conservative | 680 |
| T. Bishenden | NF | 20 |
South1 seat
| M. Stevens | Conservative | 1,193 |
| J. Webb | Labour | 502 |
| C. Merlock | NF | 21 |