| School | Address | Town | County | |
|---|---|---|---|---|
| Ysgol Y Fro Llangyndeyrn | Llangyndeyrn | Sir Gaerfyrddin | Select | |
| Ysgol Y Garnedd | Ffordd Penrhos | Gwynedd | Select | |
| Ysgol Y Garreg | Llanfrothen | Gwynedd | Select | |
| Ysgol Y Gelli | Ffordd Bethel | Gwynedd | Select | |
| Ysgol Y Gogarth | Ffordd Nant Y Gamar | Llandudno | Select | |
| Ysgol Y Gorlan | Tremadog | Gwynedd | Select | |
| Ysgol Y Graig | Llangefni | Anglesey | Select | |
| Ysgol Y Lawnt | Surgery Hill | Rhymney | Select | |
| Ysgol Y Llan, Whitford V.P. | Whitford | Flintshire | Select | |
| Ysgol Y Llys | Rhodfa'r Tywysog | Denbighshire | Select |