Dyfed County Council (Welsh: Cyngor Sir Dyfed) was the county council of the non-metropolitan county of Dyfed in south west Wales. It operated between 1974 and 1996. The county council was based at County Hall, Carmarthen.
The first election to the county council was held in April 1973, initially operating as a shadow authority alongside the outgoing authorities until it came into its powers on 1 April 1974. The vast majority of the councillors elected in 1973 were members of one of the three previous county councils. At the 1977 election, Plaid Cymru gained some ground although not to the extent that was seen in parts of the South Wales valleys in that year.[4] Political control of the council from 1974 until its abolition in 1996 was held by the following parties:[5]
The council inherited several offices from its three predecessor county councils, including the three former county councils' main offices, being Swyddfa'r Sir in Aberystwyth from Cardiganshire, County Hall, Carmarthen from Carmarthenshire, and the County Offices on St Thomas Green in Haverfordwest from Pembrokeshire. County Hall in Carmarthen served as Dyfed County Council's headquarters throughout its existence, with the other offices serving as area offices.[6][7][8]
^Swansea and South West Wales Telephone Directory, 1975, page 69, Dyfed County Council: Headquarters, County Hall, Carmarthen / County Office, Haverfordwest
^Shrewsbury, Hereford and Mid Wales Telephone Directory, 1975, page 85, Dyfed County Council: Area Office, Swyddfa' Sir, Aberystwyth