Before (end of 1978)
Not known.
After (end of 1979)
Not known.
Ward results
Abergavenny Cantref & Grofield3 seats · turnout 68.9%
| L. Biggs | Conservative | 996 ✓ |
| P. Heath | Independent | 863 ✓ |
| A. Long | Independent | 835 ✓ |
| S. Clark | Conservative | 715 |
| R. Brown | Conservative | 699 |
| A. Thomas | Labour | 685 |
| R. Hill | RATE | 665 |
| M. Slade | RATE | 626 |
| Howells S. | Labour | 554 |
| N. Slade | RATE | 526 |
| S. Hodkin | Labour | 493 |
Abergavenny Castle & Priory3 seats · turnout 73.0%
| J. Sullivan | Independent | 1,634 |
| A. King | Independent | 1,027 |
| J. Wilson | Independent | 952 |
| T. Morgan | Conservative | 740 |
| G. Lane | Labour | 727 |
| L. Goldsworthy | Labour | 679 |
| K. Broadbank | Conservative | 644 |
| G. Jones | Conservative | 588 |
| B. White | Labour | 512 |
Abergavenny Rural Llantilo Pertholey2 seats · turnout 60.8%
| A. Caine | Conservative | 1,368 |
| G. Cowan | RATE | 1,210 |
| S. James | Conservative | 947 |
Caerwent & Mathern1 seat · turnout 81.4%
| T. Spencer | Conservative | 1,057 |
| G. Hancock | Labour | 246 |
Caldicot4 seats · turnout 65.7%
| J. Cartwright | Labour | 2,943 |
| Thomas V. | Labour | 2,784 |
| W. Driscoll | Labour | 2,769 |
| W. Wheeler | Labour | 2,562 |
| I. House | Conservative | 1,666 |
| R. Richards | Conservative | 1,625 |
| B. Baggott | Conservative | 1,494 |
| F. Rogers | Ind Con | 835 |
| R Wilcox | Independent | 0 ✓ |
Devauden & Kilgwrrwg1 seat
| K. Reece | Conservative | 0 ✓ |
Faw1 seat · turnout 81.0%
| D. Husband | Conservative | 706 |
| C. Whitaker | Independent | 245 |
| D. McLeod | Labour | 75 |
Goetrefawr1 seat · turnout 78.1%
| C. Sturley | Conservative | 951 |
| R. Howells | Labour | 334 |
Gwehelogfawr & Llanbadolfawr1 seat · turnout 70.1%
| F. Saunders | Conservative | 601 |
| I. Evans | Labour | 85 |
Llanarth Fawr & Llanover1 seat
| S. Watkins | Conservative | 0 ✓ |
Llanfoist Fawr2 seats · turnout 74.4%
| E. Lewis | Conservative | 916 |
| G. John | Labour | 819 |
| C. Davis | Conservative | 680 |
| P. Slater | Labour | 633 |
| P. Thomas | Independent | 309 |
| B. Cowles | Conservative | 0 ✓ |
Llangwm & Shirenewton1 seat · turnout 79.7%
| M. Duddy | Conservative | 680 ✓ |
| W. Llewellyn | Lab/Coop | 154 |
Llanvihangel Rogiet Rogiet Undy & Major1 seat · turnout 67.3%
| G. Evans | Labour | 890 |
| P. Cawley | Conservative | 593 |
Mitchell Troy United1 seat
| D. Edwards | Conservative | 0 ✓ |
Monmouth4 seats · turnout 29.7%
| J. Lewis-Booth | Conservative | 1,401 |
| N. Price | Conservative | 1,378 |
| H. Bywhater | Conservative | 1,059 |
| K. Coates | Conservative | 1,026 |
| J. Wheelock | Labour | 1,002 |
| T. Hewson | Labour | 825 |
Portskewett1 seat · turnout 66.6%
| W. Parker | Conservative | 562 |
| Maggie Harris | Labour | 213 |
Raglan United1 seat · turnout 82.5%
| H. Embrey | Conservative | 1,049 |
| N. Hodkin | Labour | 189 |
St. Christophers1 seat · turnout 78.5%
| Gavin Edwards | Labour | 598 |
| C. Walker | Conservative | 449 |
St. Kingsmark1 seat · turnout 74.0%
| D. Knights | Conservative | 823 |
| S. Seaman | Labour | 322 |
St. Marys1 seat · turnout 81.6%
| A. Palmer | Conservative | 337 |
| E. Green | Independent | 189 |
| J. Rowland | Labour | 187 |
St.Arvans & Tintern1 seat · turnout 75.9%
| L. Jones | Conservative | 608 |
| T. Evans | Labour | 291 |
Thornwell1 seat · turnout 79.5%
| A. Huntley | Labour | 578 |
| G. Morgan | Ind Lab | 335 |
| D. Upton | Conservative | 254 |
Trellech United1 seat
| P. John | Conservative | 0 ✓ |
Usk1 seat · turnout 82.6%
| W. Hathaway | Independent | 801 |
| J. Mitchell | Conservative | 322 |
| A Leathwood | Labour | 122 |
