Before (end of 1978) (33 seats, Elections Centre)
Conservative 19 · Labour 9 · Other 4 · The Liberal Party 1
After (end of 1979) (33 seats, Elections Centre)
Conservative 17 · Labour 12 · Other 3 · The Liberal Party 1
Ward results
Earls Barton2 seats
| J. Lee | Conservative | 1,289 |
| G. Blackwell | Labour | 1,284 |
| C. Cattell | Conservative | 1,176 |
| D. Smith | Labour | 753 |
| J. Wight | LIB | 635 |
Finedon3 seats · turnout 68.2%
| G. Henderson | Labour | 1,219 |
| Jim Bailey | Conservative | 1,156 |
| H. Bailey | Conservative | 1,062 |
| L. Warner | Labour | 861 |
| H. Ransom | Conservative | 690 |
| J. Russon | LIB | 523 |
| G. Wade | Independent | 519 |
| D. Sparrow | LIB | 463 |
Great Doddington and Wilby1 seat · turnout 85.1%
| G. Addis | Conservative | 784 |
| C. Billson | Labour | 353 |
Irchester2 seats · turnout 74.7%
| J. Mann | Labour | 1,091 ✓ |
| L. Stringer | LIB | 975 ✓ |
| G. Willmott | Conservative | 936 |
| J. Mullen | Labour | 817 |
| A. Jenkins | Conservative | 790 |
| K. Sims | LIB | 592 |
| V. Taylor | Independent | 135 |
| Jim Tompkins | Conservative | 1,254 ✓ |
| P Richie | Conservative | 1,254 ✓ |
| A Bird | Conservative | 1,157 ✓ |
| P Robinson | Labour | 1,074 |
| P Bridgeford | Labour | 1,020 |
| R Bell | Labour | 1,015 |
No. 14 (Harrowden)1 seat
| J. Kerr | Conservative | 0 ✓ |
| G. Timms | Conservative | 0 ✓ |
No. 2 (Wellingborough: Croyland)3 seats · turnout 55.4%
| D. Colman | Labour | 1,709 |
| R. Bailey | Labour | 1,694 |
| R. Stonard | Labour | 1,541 |
| D. Colvin | Conservative | 901 |
No. 3 (Wellingborough: Eastfield)3 seats · turnout 69.6%
| B. Bridgeford | Labour | 978 |
| G. Burgess | Labour | 965 |
| S. Hayton | Labour | 950 |
| D. Hooton | Conservative | 942 |
| G. Falkner | Conservative | 906 |
| P. Chatwyn | RES | 633 |
| C. Aldridge | LIB | 619 |
| P. Chalmers | LIB | 359 |
| D. Lewis | LIB | 279 |
No. 5 (Wellingborough: Queensway)3 seats · turnout 67.0%
| J. Rycroft | Labour | 2,024 |
| G. Ridge | Labour | 1,956 |
| R. Williams | Labour | 1,933 |
| C. Blackmore | Conservative | 1,505 |
| J. Murphy | Conservative | 1,390 |
| Malcolm Waters | Conservative | 1,336 |
No. 6 (Wellingborough: Redwell)3 seats · turnout 69.9%
| R. Wrenn | Conservative | 2,672 |
| L. Coates | Conservative | 2,647 |
| A. Northern | Conservative | 2,632 |
| M. French | Labour | 2,197 |
| A. Page | Labour | 2,083 |
| M. Sneath | Labour | 2,031 |
| R. Price | RES | 1,610 |
| J. Sherriff | RES | 1,212 |
| B. Prime | RES | 1,109 |
No. 7 (Wellingborough: Swanspool)3 seats · turnout 72.8%
| H. Warwick | Independent | 1,039 |
| J. Jessop | Independent | 994 |
| C. Robinson | Independent | 974 |
| J. Robinson | Labour | 843 |
| P. Wills | Labour | 780 |
| G. Ryan | Labour | 726 |
| M. Asquith | Conservative | 709 |
| J. Salsbury | Conservative | 650 |
| D. Willis | Conservative | 594 |
No. 8 (Bozeat)2 seats · turnout 60.4%
| B. Perkins | Conservative | 801 |
| H. Beck | Conservative | 755 |
| J. Williams | Labour | 580 |
No. 9 (Wollaston)2 seats · turnout 70.1%
| R. Hall | Conservative | 900 |
| W. Loakes | Conservative | 780 |
| S. Perkins | Labour | 548 |
| Z. Lerner | LIB | 481 |
| P. Morris | LIB | 479 |
West1 seat · turnout 82.1%
| L. Fielder | Conservative | 604 |
| R. Gooden | Independent | 310 |
| B. Smith | Labour | 152 |
