Before (end of 1989) (39 seats, Elections Centre)
Liberal Democrats 18 · Conservative 16 · Labour 5 · Other 0
After (end of 1990) (39 seats, Elections Centre)
Conservative 23 · Liberal Democrats 11 · Labour 5 · Other 0
Ward results
Belfairs1 seat
| J. Rowswell | Conservative | 2,249 |
| S. Pawson | SLD | 1,759 |
| N. Boorman | Labour | 679 |
Blenheim1 seat
| U. Warwick | Conservative | 1,831 ✓ |
| D. Evans | SLD | 1,552 |
| B. Thurston | Labour | 917 |
| V. Wilkinson | LIB | 285 |
Eastwood1 seat
| H. Briggs | Conservative | 2,629 |
| D. Elf | SLD | 2,006 |
| Z. Chaudhri | Labour | 639 |
Milton1 seat
| K. Cater | Conservative | 1,402 ✓ |
| K. Lee | Labour | 1,025 |
| A. Petchey | SLD | 632 |
| T. Marshall | LIB | 114 |
| S. Ford | Independent | 59 |
Prittlewell1 seat
| B. Allen | Conservative | 1,608 ✓ |
| A. Miller | SLD | 1,496 |
| D. Garne | Labour | 1,101 |
| V. Wortham | Green | 215 |
Shoebury1 seat
| D. Ascroft | Conservative | 3,089 |
| C. Dandridge | Labour | 2,758 |
Southchurch1 seat
| M. Haine | Conservative | 2,373 |
| W. McIntyre | Labour | 1,723 |
| R. More | SLD | 458 |
St. Luke's1 seat
| N. Smith | Labour | 1,774 ✓ |
| P. Hawke | Conservative | 964 |
| G. Steel | SDP | 731 |
| B. Phillips | Independent | 67 |
Thorpe1 seat
| N. Moss | Conservative | 2,959 ✓ |
| G. Farrer | Labour | 1,023 |
| N. Stimpson | SLD | 478 |
| D. Melvin | Independent | 78 |
Victoria1 seat
| A. Dunn | Labour | 2,253 |
| R. Davy | Conservative | 1,064 |
| J. Kaufman | SLD | 368 |
Westborough1 seat
| J. Sibley | SLD | 1,706 |
| M. Fletcher | Labour | 986 |
| A. Brown | Conservative | 871 |
