Monmouthshire
| District | Successor |
|---|---|
| Abercarn Urban District | Islwyn |
| Abergavenny Borough | Monmouth |
| Abergavenny Rural District | Monmouth |
| Abertillery Urban District | Blaenau Gwent |
| Bedwas and Machen Urban District | Rhymney Valley |
| Bedwellty Urban District | Islwyn, Rhymney Valley |
| Blaenavon Urban District | Torfaen |
| Caerleon Urban District | Newport |
| Chepstow Rural District | Monmouth |
| Chepstow Urban District | Monmouth |
| Cwmbran Urban District | Torfaen |
| Ebbw Vale Urban District | Blaenau Gwent |
| Magor and St Mellons Rural District | Cardiff, Newport, Torfaen |
| Monmouth Borough | Monmouth |
| Monmouth Rural District | Monmouth |
| Mynyddislwyn Urban District | Islwyn |
| Nantyglo and Blaina Urban District | Blaenau Gwent |
| Pontypool Rural District | Torfaen, Monmouth |
| Pontypool Urban District | Torfaen |
| Rhymney Urban District | Rhymney Valley |
| Risca Urban District | Islwyn |
| Tredegar Urban District | Blaenau Gwent |
| Usk Urban District | Monmouth |
Newport was a county borough.
Read more about this topic: List Of Rural And Urban Districts In Wales In 1973