Carmarthenshire County Council (Cyngor Sir Gâr in Welsh) was established as a unitary authority on 1 April 1996, during nation-wide reorganisation of local government in Wales.
1996–????[]
????–2004[]
2004–2020[]
2020–present[]
Local authorities of Wales
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| Anglesey | Blaenau Gwent | Bridgend | Caerphilly | Cardiff | Carmarthenshire | Ceredigion | Conwy | Denbighshire | Flintshire | Gwynedd | Merthyr Tydfil | Monmouthshire | Neath Port Talbot | Newport | Pembrokeshire | Powys | Rhondda Cynon Taf | Swansea | Torfaen | Vale of Glamorgan | Wrexham |