Before (end of 1977) (39 seats, Elections Centre)
Conservative 34 · Labour 4 · The Liberal Party 1 · Other 0
After (end of 1978) (39 seats, Elections Centre)
Conservative 35 · Labour 3 · The Liberal Party 1 · Other 0
Ward results
Brentwood North1 seat · turnout 40.1%
| M. Gibson | Conservative | 885 |
| D. Edwards | Labour | 618 |
| E. Bonner | LIB | 359 |
Brentwood South1 seat · turnout 51.0%
| D. Minns | Labour | 1,245 |
| T. Sibley | Conservative | 913 |
Brentwood West1 seat · turnout 47.8%
| G. Green | Conservative | 1,224 |
| P. Mayo | Labour | 812 |
| W. Hume | COMM | 18 |
Doddinghurst1 seat · turnout 40.5%
| A. Witts | Conservative | 694 |
| J. Haskell | LIB | 353 |
| K Maxey | Labour | 124 |
Hutton East1 seat · turnout 47.3%
| B. Misson | Conservative | 1,132 |
| C. Ely | Labour | 722 |
| D. Stevens | COMM | 26 |
Hutton North1 seat · turnout 50.6%
| E. Dodd | Conservative | 1,118 |
| E. Harrison | Labour | 604 |
Hutton South1 seat · turnout 41.5%
| J. Weber | Conservative | 1,464 |
| D. Wacey | Labour | 162 |
Ingatestone & Fryerning1 seat · turnout 58.5%
| K. Brown | Conservative | 1,353 |
| E. Bottomley | LIB | 624 |
| R. Humphries | Labour | 166 |
Pilgrims Hatch1 seat · turnout 36.4%
| R. Cobb | Conservative | 997 |
| D. Shiels | Labour | 856 |
South Weald1 seat · turnout 73.7%
| J. Shawcross | LIB | 708 |
| J. Adams | Conservative | 135 |
| K Maxey | Labour | 22 |
Warley1 seat · turnout 41.5%
| E. Fife | Conservative | 1,215 |
| J. Cuddihee | Labour | 585 |
West Horndon1 seat · turnout 71.2%
| D. Ramsey | Conservative | 452 |
| B. Bowles | Labour | 304 |
| L. Willis | LIB | 131 |
