The 2004 Isle of Anglesey County Council election took place on Thursday 10 June 2004 to elect members of the Isle of Anglesey County Council in Wales.
[1] Prior to the election the county council had been governed for 15 months by a coalition led by Plaid Cymru's Bob Parry.
There were 28 councillors not affiliated to any political party, comprising ten declared Independents and eighteen who gave no description.
[2] The Plaid Cymru councillor for the Llanfihangel Ysgeifiog ward, Hughie Noel Thomas, resigned from the party group in October 2006.
He was jailed for nine months on 6 November 2006 (and disqualified from being a county councillor) for falsifying Post Office records.