Before (end of 1983) (40 seats, Elections Centre)
Conservative 28 · SDP-Liberal Alliance 7 · Other 3 · Labour 2
After (end of 1984) (40 seats, Elections Centre)
Conservative 29 · SDP-Liberal Alliance 8 · Labour 2 · Other 1
Ward results
Ashingdon1 seat · turnout 42.1%
| T. Fawell | Conservative | 527 |
| D. Johnson | Lib/Sdp | 447 |
Downhall1 seat · turnout 44.4%
| C. Black | Lib/Sdp | 651 |
| S. Fletcher | Conservative | 512 |
Grange & Rawreth1 seat · turnout 34.9%
| P. Beckers | Lib/Sdp | 570 |
| N. Hill | Conservative | 507 |
| S. Cox | Labour | 450 |
Hawkwell East1 seat · turnout 28.3%
| T. Burt | Conservative | 904 |
| D. Orrock | Labour | 395 |
Hawkwell West1 seat · turnout 34.6%
| L. Holdich | Conservative | 510 |
| K. Saunders | Lib/Sdp | 306 |
| G. Plackett | Labour | 204 |
Hockley Central1 seat · turnout 42.5%
| E. Hart | Conservative | 356 |
| M. Fowler | Lib/Sdp | 246 |
| R. Ellis | Labour | 83 |
Hockley East2 seats · turnout 41.2%
| M. Anderson | Conservative | 824 |
| K. Banks | Conservative | 766 |
| A. Eden | Lib/Sdp | 607 |
| M. Nudd | Lib/Sdp | 536 |
Hockley West1 seat · turnout 28.8%
| J. Jones | Conservative | 640 |
| D. Miles | Lib/Sdp | 211 |
Hullbridge Riverside1 seat · turnout 32.8%
| J. Parkinson | Conservative | 351 |
| Clive Morgan | Labour | 342 |
| G. Skinner | Lib/Sdp | 258 |
Hullbridge South1 seat · turnout 35.0%
| L. Walker | Conservative | 296 |
| D. Richardson | Labour | 274 |
| M. Menning | Lib/Sdp | 229 |
Lodge1 seat · turnout 35.1%
| J. Panniers-Taylor | Conservative | 794 |
| M. Handford | Lib/Sdp | 663 |
| F. Denny | Labour | 171 |
Rayleigh Central1 seat · turnout 34.0%
| C. Gardner | Conservative | 392 ✓ |
| S. Silva | Independent | 340 |
| B. Howey | Lib/Sdp | 158 |
| M. Doddimead | Labour | 97 |
Rochford St. Andrews2 seats · turnout 47.2%
| D. Wade | Conservative | 546 |
| D. Weir | Labour | 543 |
| B. Gooding | Conservative | 532 |
| Myra Anne Weir | Labour | 521 |