Before (end of 1983) (43 seats, Elections Centre)
Labour 24 · SDP-Liberal Alliance 7 · Conservative 7 · Other 5
After (end of 1984) (43 seats, Elections Centre)
Labour 22 · Conservative 10 · SDP-Liberal Alliance 7 · Other 4
Ward results
Belper East1 seat · turnout 42.5%
| R. Bailey | Conservative | 1,020 ✓ |
| A. Broughton | Labour | 903 |
| J. Harrison | Ind Lab | 330 |
| D. Parkin | Lib/Sdp | 312 |
HEAGE & AMBERGATE1 seat · turnout 52.3%
| M. Kent | Labour | 757 |
| K. Hartshorne | Independent | 614 |
| I. Stone | Conservative | 599 |
Heanor & Loscoe1 seat · turnout 34.8%
| S. Mellors | Labour | 873 |
| J. Lunn | Conservative | 529 |
Heanor East1 seat · turnout 40.2%
| G. Holmes | Labour | 890 |
| B. Eley | Conservative | 850 |
Ironville & Riddings1 seat · turnout 43.5%
| M. Davis | Labour | 772 |
| J Brown | Conservative | 506 |
| G. Cox | Lib/Sdp | 471 |
Langley Mill & Aldercar1 seat · turnout 38.9%
| S. Rice | Labour | 713 |
| L. Riley | Conservative | 463 |
| I. Stokes | Independent | 343 |
Ripley1 seat · turnout 37.9%
| Williams | Labour | 1,259 |
| R. Anderson | Conservative | 702 |
| J. Woollacott | Lib/Sdp | 621 |
Ripley & Marehay1 seat · turnout 43.1%
| G. Carlile | Labour | 1,149 |
| B. Roberts | Conservative | 653 |
SOMERCOTES1 seat · turnout 35.3%
| A. Stringer | Labour | 672 |
| B. Johnson | Lib/Sdp | 532 |
| King A. | Conservative | 352 |