Before (end of 1982) (39 seats, Elections Centre)
Conservative 25 · SDP-Liberal Alliance 8 · Labour 5 · Other 1
After (end of 1983) (39 seats, Elections Centre)
Conservative 27 · SDP-Liberal Alliance 9 · Labour 3 · Other 0
Ward results
Blenheim1 seat
| E. Watson-Lamb | Conservative | 1,959 |
| J. Murray | All | 1,480 |
| M. Howard | Labour | 698 |
Eastwood1 seat
| G. Longley | All | 1,918 |
| J. Rowswell | Conservative | 1,878 |
| P. Johnson | Labour | 322 |
Leigh1 seat
| A. Crystall | All | 2,476 ✓ |
| A. Hall | Conservative | 2,002 |
| L. Davidson | Labour | 249 |
| Newman C. Ind | Cen Dem | 24 |
Milton1 seat
| J. Carlile | Conservative | 1,453 ✓ |
| R. Kennedy | Labour | 697 |
| J. Overy | All | 461 |
Prittlewell1 seat
| J. Armitage | All | 1,994 |
| L. Myers | Conservative | 1,640 |
| P. Long | Labour | 586 |
Shoebury1 seat
| J. Lowe | Conservative | 2,434 |
| A. Hurst | Labour | 1,704 |
| Y. Rushman | All | 680 |
Southchurch1 seat
| D. Garston | Conservative | 2,444 |
| M. Burstin | All | 879 |
| G. White | Labour | 740 |
St. Luke's1 seat
| C. Hudson | Conservative | 1,186 |
| D. Waring | Labour | 1,142 |
| G. Gibeon | All | 770 |
Thorpe1 seat
| B. Scholfield | Conservative | 2,738 |
| J. Magnay | All | 736 |
| M. Hurley | Labour | 527 |
Westborough1 seat
| G. Littler | Conservative | 1,789 |
| P. Jack | All | 1,674 |
| A. Smith | Labour | 656 |
