Wales is part of UK administration, below is a list of administrative areas in Wales. Each Country is divided into following administrative areas:
| Population | 3063261 |
| Addresses / Property Count | 1302601 |
| Districts in Wales | 22 |
| Total Postcodes | 140175 |
| Active Postcodes | 92058 |
| District | County | Total Postcodes |
|---|---|---|
| Blaenau Gwent | Gwent | 4044 |
| Bridgend | Mid Glamorgan | 4265 |
| Caerphilly | Gwent | 9130 |
| Cardiff | South Glamorgan | 18021 |
| Carmarthenshire | Dyfed | 7997 |
| Ceredigion | Dyfed | 3769 |
| Conwy | Clwyd | 4979 |
| Denbighshire | Clwyd | 4340 |
| Flintshire | Clwyd | 5441 |
| Gwynedd | Gwynedd | 6536 |
| Isle of Anglesey | Gwynedd | 3248 |
| Merthyr Tydfil | Mid Glamorgan | 1988 |
| Monmouthshire | Gwent | 6282 |
| Neath Port Talbot | West Glamorgan | 4609 |
| Newport | Gwent | 10761 |
| Pembrokeshire | Dyfed | 5841 |
| Powys | Powys | 7023 |
| Rhondda Cynon Taf | Mid Glamorgan | 7235 |
| Swansea | West Glamorgan | 8561 |
| Torfaen | Gwent | 4226 |
| Vale of Glamorgan | South Glamorgan | 6631 |
| Wrexham | Clwyd | 5248 |