Before (end of 1972)
Not known.
After (end of 1973) (43 seats, Elections Centre)
Labour 24 · Conservative 19 · Other 0 · The Liberal Party 0
Ward results
| J. Hill | Conservative | 0 ✓ |
| E. Clear-Hill | Conservative | 0 ✓ |
| W Storey | Conservative | 0 ✓ |
Haldens3 seats · turnout 36.5%
| J. Emmerson | Labour | 886 |
| S. Horner | LIB | 561 |
| J. Blackburn | LIB | 545 |
| D. Kohler | LIB | 517 |
| P. Denham | Conservative | 505 |
| P. Phillips | Conservative | 490 |
| T. Duffy | Conservative | 462 |
| C. Edwards | COMM | 126 |
Handside3 seats · turnout 43.8%
| R. Martin | Conservative | 1,430 |
| D. Lewis | Conservative | 1,425 |
| D. Newton | Conservative | 1,390 |
| R. Thomas | Labour | 762 |
| W. Macklin | Labour | 704 |
| D. Maisey | Labour | 695 |
Hatfield Central3 seats · turnout 54.0%
| F. Clark | Labour | 1,186 ✓ |
| Feryal Clark | Labour | 1,186 |
| G Wenham | Labour | 1,152 ✓ |
| P Turner | Labour | 1,123 ✓ |
| K. Pearce | The Liberal Party | 737 |
| K Pearce | LIB | 737 |
| D Dunkley | LIB | 667 |
| D. Dunkley | The Liberal Party | 667 |
| B Flook | LIB | 639 |
| J. Pomroy | Conservative | 516 |
| J Pomroy | Conservative | 516 |
| J Roberts | Conservative | 495 |
| J. Roberts | Conservative | 495 |
| I Buckley-Saxon | Conservative | 460 |
| I. Buckley-Saxon | Conservative | 460 |
Hatfield East3 seats · turnout 44.1%
| W. Clark | Conservative | 1,087 ✓ |
| W Clark | Conservative | 1,087 |
| J. Thomas | Conservative | 1,015 ✓ |
| J Thomas | Conservative | 1,015 |
| D. Westbeech | Conservative | 985 ✓ |
| D Westbeech | Conservative | 985 |
| L McDonald | Labour | 906 |
| T. Welham | Labour | 891 |
| T Welham | Labour | 891 |
| S Clark | Labour | 859 |
| S. Clark | Labour | 859 |
Hatfield North3 seats · turnout 47.3%
| F Clayton | Labour | 1,310 |
| T. Freeman | Labour | 1,288 |
| R. Little | Labour | 1,263 |
| H. Goodliffe | Conservative | 648 |
| G. Wade | Conservative | 605 |
| J. Mahn | Conservative | 601 |
Hatfield South3 seats · turnout 42.3%
| Ian Baker | Labour | 1,358 |
| I. Baker | Labour | 1,358 ✓ |
| Raymond Clifton | Labour | 1,344 |
| R. Clifton | Labour | 1,344 ✓ |
| A Wakeford | Labour | 1,300 |
| A. Wakeford | Labour | 1,300 ✓ |
| E. Cox | Conservative | 1,039 |
| Edward Cox | Conservative | 1,039 |
| P Hill | Conservative | 981 |
| P. Hill | Conservative | 981 |
| D Waite | Conservative | 934 |
| D. Waite | Conservative | 934 |
Hollybush3 seats · turnout 30.1%
| T. Deacon | Labour | 1,324 |
| J. O'Farrell | Labour | 1,285 |
| J. Bizley | Labour | 1,240 |
| M. Jackson | Conservative | 379 |
Northaw & Cuffley3 seats
| S. Middleton | Conservative | 0 ✓ |
| J. Pritchard | Conservative | 0 ✓ |
| D. Creasey | Conservative | 0 ✓ |
Peartree3 seats · turnout 22.8%
| C. Stone | Labour | 957 |
| A. Luddington | Labour | 856 |
| J. Howells | Labour | 827 |
| E. Landsman | Conservative | 261 |
| A. Duncan | COMM | 183 |
Sherrards3 seats
| A. McNamara | Conservative | 1,241 |
| A. Hewson | Conservative | 1,225 |
| G. Ayerst | Conservative | 1,210 |
| B. Couzens | Labour | 1,194 |
| R. Watkins | Labour | 1,075 |
| V. Black | Labour | 1,051 |
Welwyn South2 seats · turnout 41.7%
| D. Sharp | Conservative | 770 |
| R. Smith | Conservative | 769 |
| N. Green | Labour | 449 |
| W. Emmerson | Labour | 421 |