| Seats | Seat Changes | |||||
|---|---|---|---|---|---|---|
| Party | Then | Now | Gains | Losses | Net | |
| Labour | 29 | 29 | 0 | 0 | 0 | |
| Plaid Cymru | 12 | 12 | 0 | 0 | 0 | |
| Conservative | 11 | 11 | 0 | 0 | 0 | |
| UKIP | 7 | 7 | 0 | 0 | 0 | |
| Liberal Democrat | 1 | 1 | 0 | 0 | 0 | |
| Votes | Seats | Seat Changes | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Party | Then | Now | Change | Then | Now | Gains | Losses | Net | |
| Labour | 34.71% | 34.71% | 0.00% | 27 | 27 | 0 | 0 | 0 | |
| Conservative | 21.15% | 21.15% | 0.00% | 6 | 6 | 0 | 0 | 0 | |
| Plaid Cymru | 20.54% | 20.54% | 0.00% | 6 | 6 | 0 | 0 | 0 | |
| UKIP | 12.46% | 12.46% | 0.00% | 0 | 0 | 0 | 0 | 0 | |
| Liberal Democrat | 7.67% | 7.67% | 0.00% | 1 | 1 | 0 | 0 | 0 | |
| Green | 2.47% | 2.47% | 0.00% | 0 | 0 | 0 | 0 | 0 | |
| Votes | Seats | Seat Changes | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Party | Then | Now | Change | Then | Now | Gains | Losses | Net | |
| Labour | 31.46% | 31.46% | 0.00% | 2 | 2 | 0 | 0 | 0 | |
| Plaid Cymru | 20.85% | 20.85% | 0.00% | 6 | 6 | 0 | 0 | 0 | |
| Conservative | 18.81% | 18.81% | 0.00% | 5 | 5 | 0 | 0 | 0 | |
| UKIP | 13.02% | 13.02% | 0.00% | 7 | 7 | 0 | 0 | 0 | |
| Liberal Democrat | 6.46% | 6.46% | 0.00% | 0 | 0 | 0 | 0 | 0 | |
| Green | 2.98% | 2.98% | 0.00% | 0 | 0 | 0 | 0 | 0 | |
| Brexit Party | 0.00% | 0.00% | 0.00% | 0 | 0 | 0 | 0 | 0 | |