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They succeded what are now known as the preserved counties of Wales as local government boundaries on April 1, 1996. The pre-1974 divisions were based on the traditional counties of Wales but several areas were independent county boroughs.
See: List of Welsh principal areas by population
| Subdivisions of Wales | |
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areas are Counties unless stated
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The traditional Counties are as follows
History
In 1974 new administrative regions of Wales called counties were created to replace the previous system of 13 counties and 4 county boroughs. These were two-tier authorities.
County Boroughs
The post-1974 arrangements were as follows
The makeup of these districts into the current UAs is as follows
| UA | Previous districts |
|---|---|
| Angelsey | Angelsey |
| Bleanau Gwent | most of Bleanau Gwent |
| Bridgend | Most of Ogwy |
| Caerphilly | Islwyn and Rhymney Valley |
| Camarthenshire | Camarthen, Llanelli, Dinefwr |
| Cardiff | Cardiff, part of Taff-Ely |
| Ceredigion | Arfon, Dwyfor, Meirionnydd |
| Conwy | Aberconwy, most of Colwyn |
| Denbighshire | Rhuddlan, bits of Glyndwyr and part of Colwyn |
| Flintshire | Alyn, Deeside, Delyn |
| Monmouthshire | Monmouth, bit of Blaenau Gwent |
| Neath Port Talbot | Neath, Port Talbot, and bits of Lliw Valley |
| Newport | Newport |
| Pembrokeshire | Preseli, South Pembrokeshire |
| Powys | Montgomeryshire, Radnorshire, Brecknock, part of Glyndwyr |
| Rhondda Cynon Taf | Rhondda, Cynon Valley, most of Taff-Ely |
| Swansea | Swansea, bits of Lliw Valley |
| Torfaen | Torfaen |
| Vale of Glamorgan | most of Vale of Glamorgan |
| Wrexham | most of Wrexham, bits of Glyndwyr |
See also: Subdivisions of the United Kingdom, Counties of Wales