Before (end of 1975)
Not known.
After (end of 1976)
Not known.
Ward results
Abergavenny Cantref & Grofield3 seats · turnout 30.8%
| S. Clark | Conservative | 888 |
| W. Fletcher | Conservative | 885 |
| R. Brown | Conservative | 850 |
| R. Bowditch | LIB | 388 |
| D. Bowditch | LIB | 355 |
Abergavenny Castle & Priory3 seats · turnout 31.0%
| T. Morgan | Conservative | 958 |
| G. Jones | Conservative | 845 |
| K. Broadbank | Conservative | 839 |
| L. Goldsworthy | Labour | 544 |
Abergavenny Rural Llantilo Pertholey2 seats · turnout 37.5%
| A. Caine | Conservative | 681 |
| S. James | Conservative | 543 |
| G. Jones | CAll | 448 |
| D. Harris | CAll | 360 |
Caerwent & Mathern1 seat · turnout 55.8%
| T. Spencer | Conservative | 693 |
| W Llewellyn | Labour | 170 |
Caldicot4 seats · turnout 36.8%
| W. Brace | Labour | 1,291 |
| Thomas V. | Labour | 1,250 |
| W. Wheeler | Labour | 1,219 |
| J. Cartwright | Labour | 1,191 |
| E. Harris | Conservative | 699 |
| R. Richards | Conservative | 630 |
| I. House | Conservative | 612 |
| G. Lloyd | Conservative | 552 |
| T. Foxall | LIB | 338 |
| M. Milliken | LIB | 280 |
| T. Ashfield | LIB | 222 |
Crucorney Fawr & Grosmont Fawr1 seat · turnout 67.1%
| R. Bees | Independent | 390 |
| A. Higgs | Conservative | 205 |
| C. Llewellyn | Independent | 168 |
Devauden & Kilgwrrwg1 seat · turnout 71.9%
| G. Reece | Conservative | 207 |
| J. Davies | Independent | 157 |
Goetrefawr1 seat · turnout 46.3%
| C. Sturley | Conservative | 555 |
| S. Hodkin | Labour | 186 |
Gwehelogfawr & Llanbadolfawr1 seat · turnout 59.1%
| F. Saunders | Conservative | 360 |
| I. Shepherdson | Independent | 195 |
Larkfield1 seat · turnout 55.9%
| G. Davies | Conservative | 478 |
| D. Williams | Labour | 289 |
Llanarth Fawr1 seat
| S. Watkins | Conservative | 0 ✓ |
Llanfoist Fawr2 seats · turnout 49.9%
| E. Lewis | Conservative | 724 |
| C. Davies | Conservative | 561 |
| L. Parry | Labour | 444 |
| M. Bourton | Labour | 437 |
Llangattock1 seat
| B. Coeloe | Conservative | 0 ✓ |
Llangwm & Shirenewton1 seat · turnout 51.9%
| M. Duddy | Conservative | 379 |
| J. Nettleship | Independent | 140 |
Llanhennoick Fawr1 seat
| D. Husband | Conservative | 0 ✓ |
Llanvihangel Rogiet Rogiet Undy & Major1 seat · turnout 57.8%
| G. Evans | Labour | 622 |
| J. Shirvington | Conservative | 220 |
| A. Milliken | LIB | 118 |
Mitchell Troy United1 seat
| B. Edwards | Conservative | 0 ✓ |
Monmouth4 seats · turnout 34.2%
| N. Price | Conservative | 1,658 |
| J. Lewis-Booth | Conservative | 1,634 |
| K. Coates | Conservative | 1,344 |
| H. Bywater | Conservative | 1,275 |
| J. Wheflock | Labour | 771 |
| F. Thompson | Labour | 658 |
Portskewett1 seat
| W. Parker | Conservative | 0 ✓ |
Raglan United1 seat
| H. Embrey | Conservative | 0 ✓ |
St. Christophers1 seat · turnout 51.4%
| Gavin Edwards | Labour | 342 |
| C. Walker | Conservative | 214 |
| E. Spanswick | Ind Lab | 20 |
St. Kingsmark1 seat · turnout 44.3%
| D. Knights | Conservative | 423 |
| A. Collier | Labour | 191 |
St.Arvans & Tintern1 seat
| D. Lewis | Conservative | 0 ✓ |
Thornwell1 seat · turnout 44.5%
| A. Huntley | Labour | 507 |
| K. Tusus-Platis | Conservative | 102 |
Trellech United1 seat
| P. John | Conservative | 0 ✓ |
Usk1 seat · turnout 63.7%
| W. Hathaway | Independent | 525 |
| C. Hughes | Conservative | 434 |