Before (end of 1998)
Not known.
After (end of 1999)
Not known.
Ward results
Blaenavon3 seats · turnout 38.6%
| Christine Howells | Independent | 1,246 |
| S. Evans | Independent | 1,147 |
| N. Lewis | Labour | 1,031 |
| P. Roberts | Labour | 885 |
| W. Jobbins | Labour | 680 |
| D Layton | Liberal Democrats | 326 |
Brynwern1 seat
| J. Everson | Labour | 0 |
Croesyceiliog South1 seat
| Marlene Thomas | Labour | 0 |
Cwmynyscoy1 seat
| Waite N. | Labour | 0 |
New Inn Lower2 seats
| M. Morgan | Labour | 0 |
New Inn Upper1 seat
| J. Turner | Labour | 0 |
Wainfelin1 seat
| Yvonne Warren | Labour | 0 |