Before (end of 1975) (48 seats, Elections Centre)
Labour 25 · Conservative 23 · The Liberal Party 0 · Other 0
After (end of 1976) (48 seats, Elections Centre)
Conservative 32 · Labour 16 · The Liberal Party 0 · Other 0
Ward results
No. 10 (Northampton: South)3 seats · turnout 37.8%
| J. Ambidge | Conservative | 1,595 |
| M. Aldridge | Conservative | 1,594 |
| J. Dove | Conservative | 1,519 |
| L. Clarke | Labour | 475 |
| G. Taylor | Labour | 447 |
No. 11 (Northampton: Duston)4 seats
| Michael Finch | Conservative | 2,718 ✓ |
| M Orton-Jones | Conservative | 2,554 ✓ |
| B Prouse | Conservative | 2,486 ✓ |
| Diana Edwards | Conservative | 2,422 ✓ |
| J Gardner | Labour | 1,877 |
| J Ryan | Labour | 1,330 |
| V Barber | Labour | 1,325 |
| W Kelly | Labour | 1,321 |
| A Scott | LIB | 557 |
No. 4 (Northampton: Delapre)3 seats
| M. Lloyd | Conservative | 1,173 ✓ |
| E. Earp | Labour | 1,113 ✓ |
| S. Freeman | Conservative | 1,110 ✓ |
| P. Conway | Labour | 1,103 |
| T. Prouse | Conservative | 1,073 |
| A. Berry | Labour | 1,043 |
| J. Smith | Independent | 479 |
| R. Umney | LIB | 376 |
| M. Willis | LIB | 306 |
| A. Rock | LIB | 292 |
| J Coleman | Conservative | 2,569 ✓ |
| M Desborough | Conservative | 2,464 ✓ |
| R Liddington | Conservative | 2,363 ✓ |
| M Liddington | Conservative | 2,359 ✓ |
| C McClorey | Conservative | 2,340 ✓ |
| J Bigley | Labour | 1,719 |
| P Berridge | Labour | 1,688 |
| Amber Teagan McQuillan | Labour | 1,563 |
| K Lamb | Labour | 1,521 |
| P Hallman | Labour | 1,450 |
| W Charteress | RES | 1,323 |
| P Eccles | RES | 1,215 |
| H Hill | RES | 1,019 |
| P Dennis | LIB | 721 |
| K Grant | LIB | 681 |
| P Hiams | Labour | 1,673 ✓ |
| R Linsdell | Labour | 1,618 ✓ |
| John Thomas | Labour | 1,484 ✓ |
| Robert Winter | Labour | 1,458 ✓ |
| R Hinde | Conservative | 1,414 |
| M Bowler | Conservative | 1,395 |
| R Morgan | Conservative | 1,380 |
| D Lunn | Conservative | 1,345 |
| K Meade | LIB | 551 |