Before (end of 1972)
Not known.
After (end of 1973) (48 seats, Elections Centre)
Labour 29 · The Liberal Party 12 · Conservative 5 · Other 2
Ward results
No. 1 (Blyth: Croft)5 seats
| J Donoghue | Labour | 968 ✓ |
| D Mackin | LIB | 883 ✓ |
| R Campbell | Labour | 844 ✓ |
| H Pearson | LIB | 831 ✓ |
| C Long | Labour | 830 ✓ |
| George Cairns | Labour | 779 |
| P Mortakis | Labour | 711 |
| R Mordue | Labour | 621 |
| E Tolhurst | Labour | 599 |
| M Macdonald | Labour | 582 |
| W Woolfrey | Labour | 565 |
| M Watts | Labour | 530 |
| G Boyd | LIB | 210 |
No. 2 (Blyth: Bebside) (E.P. 24.6.76)5 seats · turnout 16.5%
| R. Mordue | Labour | 621 ✓ |
| E. Tolhurst | Labour | 599 ✓ |
| M. Macdonald | Labour | 582 ✓ |
| W. Woolfrey | Labour | 565 ✓ |
| M. Watts | Labour | 530 ✓ |
| G. Boyd | The Liberal Party | 210 |
No. 3 (Blyth: Plessey)5 seats · turnout 20.0%
| E. Howes | Labour | 833 |
| R. Milburn | Labour | 827 |
| A. Hancock | Labour | 806 |
| G. Barker | Labour | 785 |
| N. Batchelor | Labour | 764 |
| P. Kennedy | LIB | 354 |
| J. Summerly | LIB | 269 |
No. 4 (Blyth: Ridley)6 seats
| M McGilvray | Conservative | 954 ✓ |
| J Tate | Conservative | 931 ✓ |
| V McIver | Conservative | 818 ✓ |
| V Crosby | Conservative | 806 ✓ |
| R Gallon | Independent | 797 ✓ |
| Amanda Hall | Conservative | 761 ✓ |
| N Jackson | Independent | 748 |
| T Elder | Labour | 720 |
| Tony Dean | Labour | 699 |
| A Gilhespy | Independent | 680 |
| J Kulke | Conservative | 678 |
| E McGuckin | Labour | 676 |
| E Pollock | Independent | 673 |
| F Marshall | Independent | 652 |
| E Breadin | Labour | 637 |
| A Bosworth | Labour | 630 |
| W West | Labour | 599 |
| G Ferguson | Independent | 591 |
| S Baxter | LIB | 265 |
| A Romer | LIB | 247 |
No. 5 (Blyth: Waterloo)6 seats
| J Reid | LIB | 1,263 ✓ |
| E Bolton | LIB | 1,241 ✓ |
| D Lees | LIB | 1,215 ✓ |
| J Cooper | LIB | 1,202 ✓ |
| D Champion | LIB | 1,201 ✓ |
| F Arkwright | LIB | 1,162 ✓ |
| Iain Scott Hamilton | Labour | 1,140 |
| B Chandler | Labour | 1,073 |
| J Nicholson | LIB | 1,051 |
| Anne Graham | Labour | 1,046 |
| Tessa Tyler Todd | Labour | 1,019 |
| D Milne | LIB | 1,015 |
| W Ince | Labour | 1,008 |
| W Yellowley | Labour | 998 |
| M Hampton | Labour | 991 |
| F Smith | Labour | 986 |
| J Beton | LIB | 962 |
| A Armstrong | LIB | 958 |
| M Southern | LIB | 950 |
| Mary McGuckin | Labour | 937 |
| J Hudspith | Labour | 914 |
| E Wellington | Labour | 897 |
| L Leightley | Ind Lab | 352 |
No. 6 (Cramlington West & Hartford)5 seats · turnout 46.5%
| I. Hamilton | Labour | 1,140 ✓ |
| B. Chandler | Labour | 1,073 ✓ |
| J. Nicholson | The Liberal Party | 1,051 ✓ |
| A. Graham | Labour | 1,046 ✓ |
| T. Todd | Labour | 1,019 ✓ |
| D. Milne | The Liberal Party | 1,015 |
| M. Hampton | Labour | 991 |
| J. Beton | The Liberal Party | 962 |
| A. Armstrong | The Liberal Party | 958 |
| M. Southern | The Liberal Party | 950 |
| L. Leightley | Other | 352 |
No. 7 (Cramlington East)6 seats · turnout 36.4%
| A. Hutchinson | Labour | 1,266 |
| B. Thomas | LIB | 1,265 |
| N. Hughes | Labour | 1,261 |
| I. Cooper | LIB | 1,260 |
| E. Munro | LIB | 1,257 |
| J. Bradshaw | Labour | 1,252 |
| D. McGee | LIB | 1,240 |
| J. Mordue | Labour | 1,234 |
| G. Sumner | Labour | 1,234 |
| R. Thompson | LIB | 1,213 |
| B. Cobb | Labour | 1,210 |
| M. Ward | LIB | 1,185 |
No. 8 (Seaton Delaval)8 seats · turnout 30.3%
| J. Patterson | Labour | 2,087 |
| J. Collier | Labour | 1,833 |
| J. Atkinson | Labour | 1,750 |
| L. Henderson | Labour | 1,728 |
| H. Dawson | Labour | 1,721 |
| R. Clough | Labour | 1,693 |
| L. McManus | Independent | 1,634 |
| G. Adams | Labour | 1,625 |
| M. French | Labour | 1,552 |
| K. Barry | LIB | 722 |
| A. Champion | LIB | 685 |
| R. Turnbull | LIB | 664 |
| A. Briggs | LIB | 592 |
No. 9 (Hartley)2 seats · turnout 59.4%
| T. Earnshaw | Labour | 678 |
| B. Burt | Labour | 600 |
| J. Romer | LIB | 362 |
| P. Alexander | LIB | 255 |
