Before (end of 1978) (55 seats, Elections Centre)
Conservative 24 · Other 23 · Labour 8 · The Liberal Party 0
After (end of 1979) (57 seats, Elections Centre)
Conservative 31 · Other 16 · Labour 10 · The Liberal Party 0
Ward results
All Saints2 seats
| F. Sawyer | Conservative | 967 |
| M. Gray | Conservative | 923 |
| M. Winslow | Labour | 786 |
| M. Studd | Labour | 770 |
Aveland1 seat · turnout 76.9%
| H. Ferne | Labour | 564 |
| V. Gibbons | Conservative | 500 |
Belmont1 seat
| R. Whatton | Independent | 0 ✓ |
Bourne East3 seats
| J. Wright | Conservative | 0 ✓ |
| D. Fisher | Conservative | 0 ✓ |
| A. Richardson | Independent | 0 ✓ |
Bourne West2 seats · turnout 60.3%
| M. Clark | Independent | 1,304 |
| R. Alexander | Conservative | 1,044 |
| D. Reeson | Independent | 843 |
Casewick1 seat
| F. Stevens | Independent | 0 ✓ |
DEEPING ST. JAMES3 seats
| M. Moyle | Independent | 0 ✓ |
| L. Eyre | Independent | 0 ✓ |
| J. Smith | Independent | 0 ✓ |
Earlesfield3 seats · turnout 55.1%
| P. Perry | Labour | 1,425 |
| Dexter N. | Labour | 1,362 |
| R. Sage | Labour | 1,229 |
| A. Owen | Conservative | 903 |
| J. Wilks | Conservative | 860 |
| D. Richards | Conservative | 786 |
Ermine1 seat
| R. Simpson | Independent | 0 ✓ |
Glen Eden1 seat
| J. Willoughby | Independent | 0 ✓ |
Grantham St. Johns3 seats · turnout 63.1%
| H. Harris | Labour | 1,205 |
| H. Nadin | Conservative | 1,156 |
| B. Lee | Conservative | 1,100 |
| T. Walsh | Conservative | 1,035 |
| R. Bevan | Labour | 938 |
| W. Bevan | Labour | 916 |
Greyfriars3 seats · turnout 55.3%
| J. Foster | Conservative | 1,515 |
| G. Foster | Conservative | 1,483 |
| W. Sykes | Conservative | 1,253 |
| J. Sage | Labour | 1,017 |
Harrowby3 seats · turnout 64.5%
| I. Dawson | Labour | 1,905 |
| A. Ramsden | Labour | 1,727 |
| S. Garnet | Labour | 1,463 |
| P. Brandreth | Conservative | 1,030 |
| C. Hall | Conservative | 954 |
| P. Aust | Conservative | 927 |
Heath1 seat
| L. Johnston | Conservative | 0 ✓ |
Isaac Newton1 seat · turnout 77.0%
| W. Parnell | Independent | 487 |
| D. Shelton | Labour | 365 |
Lincrest1 seat
| D. Fletcher | Independent | 0 ✓ |
MARKET & WEST DEEPING3 seats
| Vacant | Independent | 0 ✓ |
| Vacant | Independent | 0 ✓ |
| E. Jones | Independent | 0 ✓ |
Peascliffe1 seat
| J. Thompson | Conservative | 0 ✓ |
Ringstone1 seat
| V. Needham | Independent | 0 ✓ |
Saxonwell1 seat
| G. Swallow | Independent | 0 ✓ |
St George's2 seats
| G. Essex | Labour | 1,179 |
| M. Nichols | Conservative | 961 |
| M. McFadyen | Labour | 927 |
| E. Randall | Conservative | 870 |
St. Annes3 seats · turnout 71.1%
| G. Necklen | Conservative | 1,699 |
| S Measures | Conservative | 1,457 |
| C. Burrows | Labour | 1,456 |
| A. Whitehead | Conservative | 1,382 |
| E. Davies | Labour | 1,262 |
| F. Spurr | Labour | 1,065 |
St. Marys2 seats · turnout 52.1%
| P. Spiegl | Conservative | 1,329 |
| G. Swanson | Conservative | 1,255 |
| R. Gregory | Labour | 976 |
St. Wulframs3 seats · turnout 53.9%
| J. Flatters | Conservative | 1,444 |
| F. Wright | Conservative | 1,426 |
| J. Hornby | Conservative | 1,351 |
| C. Wallace | Labour | 769 |
Stamford St John's2 seats
| A. Nichols | Conservative | 0 ✓ |
| A. Riley | Conservative | 0 ✓ |
Witham Valley1 seat
| G. Critchley | Conservative | 0 ✓ |
