Before (end of 1979) (39 seats, Elections Centre)
Conservative 33 · Labour 4 · The Liberal Party 2 · Other 0
After (end of 1980) (39 seats, Elections Centre)
Conservative 31 · Labour 4 · The Liberal Party 4 · Other 0
Ward results
Blackmore1 seat · turnout 55.0%
| J. Hobbs | Conservative | 290 |
| P. Hilliard | LIB | 170 |
| B. Bowles | Labour | 25 |
Brentwood North1 seat · turnout 43.0%
| E. Bonner | LIB | 1,062 |
| K. Brown | Conservative | 647 |
| C. Ely | Labour | 352 |
Brentwood South1 seat · turnout 50.0%
| J. Reddell | Labour | 1,204 |
| D. Golding | Conservative | 518 |
| P. Wilcox | LIB | 442 |
Brentwood West1 seat · turnout 37.0%
| Patrick Adams | Conservative | 795 |
| I. Stroud | Labour | 604 |
| R. Cozens | LIB | 226 |
Doddinghurst1 seat · turnout 41.0%
| E. Walker | Conservative | 806 |
| J. Haskell | LIB | 400 |
| J. Keohane | Labour | 148 |
Hook End & Wyatts Green1 seat · turnout 31.0%
| P. Hodgson | Conservative | 400 |
| C. Smith | Labour | 73 |
Hutton East1 seat · turnout 39.0%
| J. Warnock | Conservative | 755 |
| D. Shiels | Labour | 571 |
| G. Sharp | LIB | 249 |
Hutton North1 seat · turnout 43.0%
| R. Sibley | Conservative | 713 |
| E. Harrison | Labour | 447 |
| G. Neal | LIB | 306 |
Hutton South1 seat · turnout 35.0%
| E. Nicholson | Conservative | 1,031 |
| A. Longham | LIB | 372 |
| P. Wacey | Labour | 103 |
Ingatestone & Fryerning1 seat · turnout 56.0%
| A. Gregg | Conservative | 1,104 |
| E. Bottomley | LIB | 1,020 |
Pilgrims Hatch1 seat · turnout 36.0%
| L. Southgate | Labour | 1,122 |
| A. Donnelly | Conservative | 747 |
Shenfield1 seat · turnout 40.0%
| T. Brocklebank | Conservative | 1,137 |
| J. Bastick | LIB | 520 |
| S. Harding | Labour | 93 |
Warley1 seat · turnout 35.0%
| A. Bloomfield | Conservative | 1,057 |
| P. Brewerton | Labour | 463 |