| Club | Stadium | City | Capacity |
|---|---|---|---|
| Llanelli Town | Stebonheath Park | Llanelli25,359 people | 3,700 |
| Carmarthen Town | Richmond Park, Carmarthen | Carmarthen14,638 people | 3,000 |
| Capacity not recorded yet | |||
| Abergavenny Town | – | ||
| Abertillery Bluebirds | – | ||
| Afan Lido | – | ||
| Ammanford AFC | Ammanford Recreation Ground | Ammanford8,610 people | – |
| Baglan Dragons | Evans Bevans Playing Fields Q | Port Talbot37,276 people | – |
| Briton Ferry Llansawel | Ebenezer | Briton Ferry5,878 people | – |
| Caerau (Ely) | Cwrt-yr-Ala House | Cardiff383,536 people | – |
| Cambrian & Clydach | The M&P 3G Stadium | Clydach Vale2,799 people | – |
| Cwmbran Celtic | – | ||
| Goytre United | – | ||
| Llantwit Major | Windmill Ground | Llantwit Major9,519 people | – |
| Pontardawe Town | Parc Ynysderw | Swansea246,700 people | – |
| Taff's Well | – | ||
| Trefelin | Ynys Park | Cwmafan5,673 people | – |
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources