Before (end of 1983) (50 seats, Elections Centre)
Conservative 33 · Labour 15 · SDP-Liberal Alliance 1 · Other 1
After (end of 1984) (50 seats, Elections Centre)
Conservative 31 · Labour 12 · Other 5 · SDP-Liberal Alliance 2
Ward results
Ashbrook1 seat · turnout 55.6%
| M. Tatham | Conservative | 633 |
| K. Brydon | Labour | 311 |
| J. Seabrook | All | 199 |
Bearton1 seat · turnout 50.5%
| J. Billingham | Labour | 1,056 |
| J. Saunders | Conservative | 893 |
| H. Shipley | All | 299 |
Grange1 seat · turnout 52.7%
| D. Kearns | Labour | 1,122 |
| B. Nicholson | All | 934 |
| R. Sturman | Conservative | 673 |
Highbury1 seat · turnout 47.1%
| P. Maccormack | Conservative | 1,247 |
| M. Burton | All | 772 |
| T. Trangmar | Labour | 386 |
Letchworth East1 seat · turnout 42.5%
| H Parkins | Labour | 1,073 |
| M. Fisher | All | 871 |
| N. King | Conservative | 536 |
Letchworth South East1 seat · turnout 57.6%
| G. Whalley | Conservative | 1,173 |
| D. Attwood | All | 1,150 |
| D. Evans | Labour | 1,107 |
Letchworth South West1 seat · turnout 53.1%
| G. Woods | Conservative | 1,294 |
| J. Preston | Labour | 596 |
| R. Ryden | All | 494 |
Oughton1 seat · turnout 41.5%
| M Stears | Labour | 1,096 |
| D. Ashley | Conservative | 459 |
| L. Maclean | All | 260 |
Priory1 seat · turnout 45.8%
| F. Howett | Conservative | 858 |
| A. Burford-Mason | All | 275 |
| N Agar | Labour | 135 |
Royston East1 seat · turnout 39.2%
| F. Smith | Conservative | 1,133 |
| Webb | Labour | 432 |
Royston West1 seat · turnout 46.9%
| Margolis | Lib/Sdp | 1,157 |
| T. Botfield | Conservative | 943 |
| E. King | Labour | 397 |
Walsworth1 seat · turnout 50.9%
| C. Parker | RES | 1,094 ✓ |
| V. Sharp | Labour | 938 |
| J. Jones | Conservative | 595 |
| J. Sefton | All | 397 |
Wilbury1 seat · turnout 59.6%
| R. Bloxham | Conservative | 1,062 |
| I. Mantle | Labour | 1,007 |
| H. Mulder | All | 325 |
