Before (end of 1983) (32 seats, Elections Centre)
Conservative 12 · SDP-Liberal Alliance 9 · Labour 9 · Other 2
After (end of 1984) (32 seats, Elections Centre)
Conservative 13 · SDP-Liberal Alliance 10 · Labour 8 · Other 1
Ward results
Broomgrove1 seat · turnout 40.4%
| M. Thrower | Lib/Sdp | 906 |
| R. Pugh | Labour | 564 |
Castle1 seat · turnout 35.9%
| R. Singleton | Lib/Sdp | 516 ✓ |
| E. Pasco | Conservative | 318 |
| A. Georgiou | Labour | 147 |
| P. Dyer | Ind LIB | 102 |
Central St. Leonards1 seat · turnout 29.7%
| A. Carrington | Conservative | 497 ✓ |
| B. Griffin | Lib/Sdp | 259 |
| J. Dawes | Labour | 208 |
| P. Buswell | Ecol | 107 |
Elphinstone1 seat · turnout 35.9%
| S. Barr | Conservative | 588 ✓ |
| J. Cook | Lib/Sdp | 366 |
| H. Duale | Labour | 318 |
| P. Bolwell | Ecol | 76 |
Hollington1 seat · turnout 33.8%
| T. Maitland | Labour | 890 |
| G. Richardson | Lib/Sdp | 221 |
Old Hastings2 seats · turnout 41.9%
| M. Gratton | Lib/Sdp | 637 ✓ |
| F. Mitchell | Lib/Sdp | 557 ✓ |
| J. Evans | Conservative | 467 |
| M. McKenzie | Conservative | 418 |
| G. Franklin | Labour | 249 |
| G. Holderness | Labour | 222 |
| A. Burgess | Independent | 189 |
| D. McFarlane | Ecol | 98 |
Ore1 seat · turnout 33.0%
| C. Beaumont | Labour | 679 |
| M. Payne | Conservative | 380 |
| M. Gardner | Lib/Sdp | 252 |
St. Helens1 seat · turnout 42.5%
| D. Thornton | Conservative | 793 |
| S. Bell | Lib/Sdp | 675 |
| B. North | Labour | 193 |
West St. Leonards1 seat · turnout 34.6%
| D. Alun-Thornton | Conservative | 621 ✓ |
| G. Osman | Lib/Sdp | 422 |
| D. Elliott | Labour | 179 |
| K. Leech | Ecol | 178 |
Wishing Tree1 seat · turnout 29.1%
| N. Hitchins | Labour | 808 |
| Y. Goldsmith | Lib/Sdp | 448 |
