Before (end of 1978) (47 seats, Elections Centre)
Conservative 37 · Labour 6 · Other 4 · The Liberal Party 0
After (end of 1979) (47 seats, Elections Centre)
Conservative 38 · Labour 5 · Other 3 · The Liberal Party 1
Ward results
Barcombe1 seat · turnout 79.4%
| J. Cornwell | Independent | 769 |
| S. Postgate | Labour | 67 |
Lewes Priory3 seats · turnout 73.0%
| R. Yarrow | Conservative | 1,548 |
| F. Tufnell | Conservative | 1,512 |
| D. Greene | Conservative | 1,447 |
| G. Mayhew | Labour | 1,121 |
| C. Brent | Labour | 1,070 |
| Z. Marsh | Labour | 1,061 |
| J. Smith | LIB | 755 |
No. 1 (Lewes: Bridge)2 seats · turnout 76.4%
| W. Fuller | Labour | 707 ✓ |
| D. Bellotti | LIB | 700 ✓ |
| R. Bullock | LIB | 610 |
| E. Howard | Labour | 590 |
| R. Simmonds | Conservative | 458 |
| J. Goodsman | Conservative | 440 |
| F. Arnold | RES | 130 |
No. 12 (Hamsey)1 seat · turnout 62.8%
| S. Whitley | Conservative | 501 |
| L. Allen | Labour | 320 |
No. 18 (Kingston)1 seat · turnout 79.9%
| G. Kent | Conservative | 419 |
| R. Gayler | Labour | 237 |
No. 19 (Rodmell)1 seat · turnout 79.0%
| H. Bartholomew | Conservative | 378 |
| P. Cook | Labour | 161 |
No. 2 (Lewes: Castle)4 seats
| A. Hayward | Labour | 1,465 ✓ |
| D. Williams | Labour | 1,349 ✓ |
| J Jacobs | Labour | 1,184 ✓ |
| F Mayhew | Labour | 1,147 ✓ |
| J Constable | Conservative | 1,063 |
| C Botting | Conservative | 1,015 |
| G Hook | LIB | 977 |
| J Russell | Conservative | 935 |
| M Fuke | Conservative | 934 |
| R Small | LIB | 655 |
| A Crompton | LIB | 596 |
| M Jupp | LIB | 579 |
No. 4 (Newhaven)6 seats
| B Rugg | Conservative | 2,837 ✓ |
| J Kennedy | Conservative | 2,807 ✓ |
| P Harwood | Conservative | 2,613 ✓ |
| C Temple | Conservative | 2,565 ✓ |
| F Herriott | Conservative | 2,545 ✓ |
| G Morris | Conservative | 2,384 ✓ |
| D Ingram | Labour | 1,867 |
| J Ingram | Labour | 1,738 |
| P Bird | Labour | 1,703 |
| T Ingram | Labour | 1,638 |
| Audrey Elizabeth Fay-Huntley | Labour | 1,560 |
| R Read | Labour | 1,558 |
| D Seagrave | Conservative | 3,986 ✓ |
| S Wallas | Conservative | 3,976 ✓ |
| V Myers | Conservative | 3,856 ✓ |
| K Thompson | Conservative | 3,812 ✓ |
| S Bleach | Conservative | 3,720 ✓ |
| D. Wheeler | Conservative | 3,431 ✓ |
| R Matthews | Labour | 1,272 |
| David Kingston | Labour | 1,217 |
No. 6 (Seaford: Sutton)5 seats
| E Sales | Conservative | 3,067 ✓ |
| R Oeters | Conservative | 2,981 ✓ |
| P Monico | Conservative | 2,937 ✓ |
| I Young | Conservative | 2,881 ✓ |
| I Hyde | Conservative | 2,879 ✓ |
| A Hargreaves | LIB | 2,166 |
| P Chapman | Labour | 883 |
| Eddie Jones | Labour | 837 |
No. 7 (Telscombe)3 seats · turnout 67.7%
| H. Johnson | Conservative | 2,273 |
| N. Wilkins | Conservative | 2,265 |
| E. Flint | Conservative | 2,262 |
| D. Crow | Labour | 779 |
| E. Alderton | Labour | 719 |
| Richmond G. | Labour | 654 |
No. 9 (Peacehaven)6 seats
| James Clayton | Conservative | 3,416 ✓ |
| A Mechelen | Conservative | 3,170 ✓ |
| Peter Gilbert | Conservative | 3,065 ✓ |
| A Oliver | Conservative | 3,052 ✓ |
| C Henning | Conservative | 3,017 ✓ |
| C Paley-Phillips | Conservative | 2,846 ✓ |
| P Tompsett | Labour | 1,563 |
| D Broadbent | Labour | 1,562 |
| T Mayo | Labour | 1,448 |
| F Hearn | Labour | 1,432 |
| W Walter | Labour | 1,390 |
| P Alty | Labour | 1,371 |
Ouse Valley1 seat · turnout 76.5%
| R. Robinson | Conservative | 635 |
| R. Outhwaite | Labour | 369 |
Plumpton1 seat · turnout 77.7%
| K. Moorhouse | Conservative | 889 |
| K. Park | Labour | 150 |
Ringmer2 seats · turnout 75.2%
| A. Peters | Independent | 1,346 |
| P. Boxall | Independent | 1,313 |
| J. Hart | Conservative | 1,069 |
| M. Poulsom | Conservative | 676 |
| A. Rew | Labour | 323 |
Wivelsfield1 seat
| V. Rowell | Conservative | 0 ✓ |
