Before (end of 1975) (33 seats, Elections Centre)
Conservative 16 · Labour 13 · Other 4 · The Liberal Party 0
After (end of 1976) (33 seats, Elections Centre)
Conservative 19 · Labour 9 · Other 4 · The Liberal Party 1
Ward results
Earls Barton2 seats · turnout 47.8%
| R. Fairhurst | Conservative | 887 |
| J. Lee | Conservative | 799 |
| P. Blackwell | Labour | 573 |
| D. Smith | Labour | 444 |
| J. Wight | LIB | 293 |
| A. Walker | LIB | 266 |
Finedon3 seats · turnout 56.2%
| Jim Bailey | Conservative | 1,315 |
| H. Bailey | Conservative | 1,082 |
| G. Henderson | Labour | 814 |
| H. Ransom | Conservative | 787 |
| A. Gregory | Labour | 596 |
| B. Jones | Labour | 397 |
| D. Sparrow | LIB | 224 |
| M. Elton | LIB | 151 |
Great Doddington and Wilby1 seat · turnout 53.5%
| G. Addis | Conservative | 531 |
| C. Billson | Labour | 167 |
Irchester2 seats · turnout 26.9%
| J. Bryan | Labour | 563 |
| L. Stringer | LIB | 516 |
| Wood | Conservative | 508 |
| B. Gilbert | LIB | 296 |
| P Ritchie | Conservative | 866 ✓ |
| Jim Tompkins | Conservative | 740 ✓ |
| A Bird | Conservative | 694 ✓ |
| A Grove | Labour | 582 |
| P Robinson | Labour | 579 |
| A Hale | Labour | 467 |
No. 14 (Harrowden)1 seat
| B. Perkins | Conservative | 0 ✓ |
| G. Timms | Conservative | 0 ✓ |
No. 2 (Wellingborough: Croyland)3 seats · turnout 18.6%
| M. Holmes | Labour | 650 |
| E. Coleman | Labour | 602 |
| R. Stonard | Labour | 542 |
| R. Jolley | Conservative | 306 |
No. 3 (Wellingborough: Eastfield)3 seats · turnout 38.5%
| D. Hooton | Conservative | 947 |
| P. Chatwyn | RES | 806 |
| B. Townson | Labour | 594 |
| G. Burgess | Labour | 533 |
| J. Williams | Labour | 530 |
| I. Chalmers | LIB | 494 |
No. 5 (Wellingborough: Queensway)3 seats · turnout 23.1%
| J. Rycroft | Labour | 852 |
| R. Williams | Labour | 841 |
| G. Ridge | Labour | 827 |
| C. Blackmore | Conservative | 820 |
No. 6 (Wellingborough: Redwell)3 seats · turnout 34.0%
| A. Northen | Conservative | 1,684 |
| L. Coates | Conservative | 1,660 |
| R. Wrenn | Conservative | 1,646 |
| D. Cowie | Labour | 786 |
| M. Sneath | Labour | 724 |
| Amanda Jane Watkins | Labour | 665 |
No. 7 (Wellingborough: Swanspool)3 seats · turnout 46.4%
| C. Warwick | Independent | 918 |
| C. Robinson | Independent | 844 |
| W. Evitts | Independent | 667 |
| L. Warner | Labour | 576 |
| M. Asquith | Conservative | 561 |
| G. Wills | Labour | 538 |
| H. Woolsey | Labour | 438 |
No. 8 (Bozeat)2 seats · turnout 39.0%
| A. Smith | Conservative | 580 |
| B. Taylor | Conservative | 545 |
| D. Lockhart | Labour | 261 |
No. 9 (Wollaston)2 seats · turnout 40.5%
| R. Hall | Conservative | 605 |
| W. Loakes | Conservative | 454 |
| H. Savage | Labour | 304 |
| J. Church | Labour | 181 |
| E. Morris | LIB | 151 |
| K. Sutcliffe | LIB | 125 |
West1 seat · turnout 57.2%
| L. Fielder | Conservative | 601 |
| P. Tebbutt | Labour | 139 |
