Ibiza (Parliament of the Balearic Islands constituency) Ibiza (Parliament of the Balearic Islands constituency) Ibiza () is one of the four constituencies () represented in the Parliament of the Balearic Islands, the regional legislature of the Autonomous Community of the Balearic Islands. The constituency currently elects 12 deputies. Its boundaries correspond to those of the island of Ibiza. The electoral system uses the D'Hondt method and a closed-list proportional representation, with a minimum threshold of 5 percent. Until the 2003 election, the results in this district were also used to determine the composition of the Ibiza and Formentera Island Council during the same term as the Parliament,
1983 Balearic regional election early 1983 after its disastrous defeat in the 1982 Spanish general election, with its supporters fleeing to the People's Alliance (AP), the People's Democratic Party (PDP) or, as one of its erstwhile leaders, the newly founded Majorcan Union (UM). Other parties which had also contested the Island Council elections four year previously were regional branch of the Spanish Socialist Workers' Party, the Socialist Party of Majorca or the Communist Party of the Balearic Islands. There was no electoral law passed, but the 1983 Statute of Autonomy did provide for a provisional distribution of seats per island until the community could