City of Cardiff Council in south Wales is elected, as a whole, every 4 years. It came into being as a unitary authority on 1 April 1996, after the passing of the Local Government (Wales) Act 1994. In 2014 the National Assembly for Wales deferred all local elections in Wales to 2017. The council is composed of 75 councillors.
Since the council was established as a unitary authority in 1996, political control has been held by the following parties: