An election to Ceredigion County Council was held on 10 June 2004 on the same day of the European Elections. It was preceded by the 1999 election and followed by the 2008 election. The whole council was up for election and following boundary changes the number of seats was reduced to 42. The council remained in a situation of No Overall Control following Plaid Cymru gains at the expense of the Independents. The Independents formed a coalition administration following the previous county council election in May 1999, being largest group on the council along with the Liberal Democrats.