Before (end of 1975)
Not known.
After (end of 1976)
Not known.
Ward results
No. 1 (Northampton: Abington)4 seats · turnout 41.9%
| J. Barnes | Conservative | 1,982 |
| S. James | Conservative | 1,939 |
| J. Turner | Conservative | 1,851 |
| J. Raca | Conservative | 1,788 |
| T. Bailey | Labour | 1,065 |
| N. Ashby | Labour | 1,005 |
| H. Fruish | Labour | 928 |
| A. Pearce | Labour | 865 |
| P. Gaunt | LIB | 436 |
| A. Yeandle | LIB | 345 |
No. 12 (Northampton: Weston)4 seats · turnout 31.1%
| G. Pollard | Conservative | 3,726 |
| Cho T. | Conservative | 3,626 |
| E. Coker | Conservative | 3,624 |
| G. Fordyce | Conservative | 3,507 |
| A. Cox | Labour | 1,619 |
No. 13 (Wotton)1 seat
| L. Sunley | Conservative | 0 ✓ |
No. 14 (Hardingstone)1 seat · turnout 47.4%
| A. Pittams | Conservative | 356 |
| F. Corp | LIB | 159 |
| J. Rigby | Independent | 152 |
No. 15 (Billing)1 seat
| D. Davies | Conservative | 0 ✓ |
No. 2 (Northampton: Castle)4 seats · turnout 30.4%
| J. Dickie | Labour | 1,920 |
| G. Mason | Labour | 1,853 |
| G. Howes | Labour | 1,850 |
| R. Dickie | Labour | 1,823 |
| A. Bracken | Conservative | 1,243 |
| C. Bracken | Conservative | 1,148 |
No. 3 (Northampton: Dallington)4 seats · turnout 30.3%
| E. Littlewood | Labour | 1,353 |
| F. Desborough | Labour | 1,269 |
| E. Fitzhugh | Labour | 1,241 |
| S. Amos | Labour | 1,181 |
| M. Bruley | Conservative | 1,023 |
| D. Nicholas | Conservative | 1,016 |
| S. Nicholas | Conservative | 998 |
| R. Elmes | Conservative | 997 |
| W. Tyrrell | COMM | 121 |
No. 6 (Northampton: Park)4 seats · turnout 43.1%
| K. Pearson | Conservative | 2,737 |
| C. Benton | Conservative | 2,655 |
| A. Hargrave | Conservative | 2,649 |
| D. Walmsley | Conservative | 2,646 |
| J. O'Neill | Labour | 1,165 |
| M. Thomas | Labour | 1,157 |
| P. McDonnell | Labour | 1,142 |
| S. Liburd | Labour | 1,078 |
| C. Miller | LIB | 558 |
No. 7 (Northampton: St. Crispin)3 seats · turnout 26.7%
| A. Billson | Labour | 668 |
| D. Lamin | Labour | 649 |
| R. Dilleigh | Labour | 642 |
| P. Tear | Conservative | 585 |
| B. Massey | Conservative | 574 |
| Y. Tear | Conservative | 529 |
| D. Newsome | LIB | 228 |