Before (end of 1983) (42 seats, Elections Centre)
Labour 24 · Conservative 13 · SDP-Liberal Alliance 3 · Other 2
After (end of 1984) (42 seats, Elections Centre)
Labour 24 · Conservative 15 · SDP-Liberal Alliance 3 · Other 0
Ward results
Billericay East1 seat · turnout 38.4%
| P. Patrick | Conservative | 2,047 |
| I. Harlow | Labour | 646 |
| A. Edwards | Lib/Sdp | 618 |
Billericay West1 seat · turnout 41.0%
| A. White | Conservative | 2,163 |
| G. Taylor | Lib/Sdp | 778 |
| A. Charley | Labour | 394 |
Burstead1 seat · turnout 43.7%
| I. Leask | Conservative | 1,939 |
| G. Cronkshaw | Lib/Sdp | 1,044 |
| Michael Baker | Labour | 656 |
Fryerns Central1 seat · turnout 36.6%
| C. O'Brien | Labour | 2,094 |
| J. White | Ind LIB | 601 |
| R. Sheridan | Conservative | 591 |
Fryerns East1 seat · turnout 31.1%
| D. Harrison | Labour | 1,860 |
| G. Penvere | Conservative | 526 |
| J. Smith | Lib/Sdp | 201 |
Laindon1 seat · turnout 41.4%
| P. Rackley | Labour | 1,602 |
| G. Buckenham | Conservative | 1,406 |
| B. Simmons | Lib/Sdp | 284 |
Langdon Hills1 seat · turnout 37.5%
| J. Bielby | Labour | 1,196 |
| P. Richardson | Lib/Sdp | 881 |
| R. Dutton | Conservative | 706 |
Lee Chapel North1 seat · turnout 40.8%
| R. Fitzgibbon | Labour | 1,996 |
| K. Neil | Lib/Sdp | 742 |
| J. Jenkinson | Conservative | 528 |
Nethermayne1 seat · turnout 49.8%
| J. Buckley | Labour | 1,690 |
| G. Williams | Lib/Sdp | 1,310 |
| T. Hall | Conservative | 950 |
Pitsea East1 seat · turnout 37.5%
| W. Hodge | Labour | 2,106 |
| E. Dines | Conservative | 961 |
| R. Hawksworth | Lib/Sdp | 190 |
Pitsea West1 seat · turnout 32.6%
| D Marks | Labour | 2,136 |
| P. Tomkins | Conservative | 554 |
| S. Saunders | Lib/Sdp | 194 |
Wickford North1 seat · turnout 40.2%
| R. Britnell | Conservative | 1,570 |
| C. Wilson | Labour | 987 |
| M. Birch | Lib/Sdp | 801 |
Wickford South1 seat · turnout 49.0%
| G. Palmer | Lib/Sdp | 2,175 ✓ |
| G. Jones | Conservative | 1,142 |
| D. Saxby | Labour | 398 |
| D. Edwards | Ind Con | 297 |