Before (end of 1979) (39 seats, Elections Centre)
Conservative 24 · Labour 11 · The Liberal Party 4 · Other 0
After (end of 1980) (39 seats, Elections Centre)
Conservative 22 · Labour 12 · The Liberal Party 5 · Other 0
Ward results
Aldenham West1 seat · turnout 36.4%
| Spratt | Conservative | 1,062 |
| Ford | Labour | 401 |
| Hurd | LIB | 284 |
Heath North1 seat · turnout 44.8%
| Franklin | Conservative | 772 |
| L. Hodgson | LIB | 642 |
| Theobald | Labour | 141 |
Heath South1 seat · turnout 35.9%
| P. Riches | Conservative | 906 |
| Shone | LIB | 257 |
| Hoeksma | Labour | 151 |
Hillside1 seat · turnout 39.4%
| J. Kentish | Labour | 825 |
| Glover | Conservative | 330 |
| Hyams | LIB | 221 |
Lyndhurst1 seat · turnout 44.6%
| E. Lindsey | Labour | 865 |
| Warren | Conservative | 575 |
Potters Bar Central1 seat · turnout 53.4%
| J. Hurd | LIB | 843 |
| Naeyer | De Con | 650 |
| Priest | Labour | 139 |
Potters Bar North1 seat · turnout 40.4%
| Birch | Conservative | 1,119 |
| P. Shannon | LIB | 222 |
| Brown | Labour | 129 |
Potters Bar South1 seat · turnout 42.3%
| Roberts | Conservative | 782 |
| B. Burness | Labour | 316 |
| Bental | LIB | 180 |
Potters Bar West1 seat · turnout 44.1%
| M. Watts | Conservative | 841 |
| Cook | LIB | 445 |
| McCarthy | Labour | 275 |
St. James East1 seat · turnout 51.0%
| Hillier | LIB | 919 |
| Dunn | Conservative | 496 |
| Cook | Labour | 166 |
St. James West1 seat · turnout 52.0%
| R. Briggs | LIB | 897 |
| Wagland | Conservative | 763 |
| Pountney | Labour | 122 |