Before (end of 1982) (39 seats, Elections Centre)
Labour 22 · Conservative 10 · Other 4 · SDP-Liberal Alliance 3
After (end of 1983) (42 seats, Elections Centre)
Labour 24 · Conservative 13 · SDP-Liberal Alliance 3 · Other 2
Ward results
Billericay East1 seat · turnout 46.3%
| Leathley B. | Conservative | 2,503 |
| G. Cronkshaw | Lib/Sdp | 819 |
| A. Chipperfield | Labour | 615 |
Billericay West1 seat · turnout 48.2%
| B. Johnson | Conservative | 2,508 |
| G. Taylor | Lib/Sdp | 902 |
| Michael Baker | Labour | 363 |
Fryerns Central1 seat · turnout 44.3%
| P Ballard | Labour | 2,032 |
| J. White | Lib/Sdp | 1,300 |
| L. Tilt | Conservative | 693 |
Fryerns East1 seat · turnout 34.0%
| A. Dove | Labour | 1,766 |
| A Ball | Conservative | 718 |
| F. Crow | Lib/Sdp | 340 |
Laindon1 seat · turnout 44.2%
| J. Blerkom | Conservative | 1,421 |
| P. Rackley | Labour | 1,364 |
| M. Howard | Lib/Sdp | 532 |
Langdon Hills1 seat · turnout 39.4%
| C. Lynch | Labour | 1,071 |
| K. Lack | Lib/Sdp | 978 |
| A. Dines | Conservative | 832 |
Lee Chapel North1 seat · turnout 40.8%
| I. Costello | Labour | 1,959 |
| R Kemp | Conservative | 731 |
| K. Neil | Lib/Sdp | 564 |
Nethermayne1 seat · turnout 48.5%
| E. Gelder | Labour | 1,512 |
| P. Cole | Conservative | 1,322 |
| A. Lutton | Lib/Sdp | 1,057 |
Pitsea East1 seat · turnout 40.2%
| C. Thomas | Labour | 1,616 |
| E. Dines | Conservative | 1,331 |
| B. Simmons | Lib/Sdp | 442 |
Pitsea West1 seat · turnout 36.9%
| J. Amey | Labour | 2,014 |
| P. Tomkins | Conservative | 869 |
| A. Scott | Lib/Sdp | 360 |
Vange1 seat · turnout 35.8%
| G. Miller | Labour | 1,589 |
| J. Dolby | Conservative | 752 |
| P. Harding | Lib/Sdp | 364 |
Wickford North1 seat · turnout 44.0%
| H. Leibner | Conservative | 1,998 |
| L. Wignall | Labour | 1,033 |
| M. Birch | Lib/Sdp | 617 |
Wickford South1 seat · turnout 49.8%
| T. Ball | Conservative | 1,775 |
| G. Palmer | Lib/Sdp | 1,764 |
| R. Turpin | Labour | 425 |
