The Parliament of the Balearic Islands was the devolved, unicameral legislature of the autonomous community of the Balearic Islands, having legislative power in regional matters as defined by the Spanish Constitution and the Balearic Statute of Autonomy, as well as the ability to vote confidence in or withdraw it from a President of the Government. Voting for the Parliament was on the basis of universal suffrage, which comprised all nationals over eighteen, registered in the Balearic Islands and in full enjoyment of their political rights. Amendments to the electoral law in 2011 required for Balearic people abroad to apply for voting before being permitted to vote, a system known as "begged" or expat vote. The 59 members of the Parliament of the Balearic Islands were elected using the D'Hondt method and a closed list proportional representation, with a threshold of 5 percent of valid votes—which included blank ballots—being applied in each constituency. Parties not reaching the threshold were not taken into consideration for seat distribution. Seats were allocated to constituencies, corresponding to the islands of Mallorca, Menorca, Ibiza and Formentera. Each constituency was allocated a fixed number of seats: 33 for Mallorca, 13 for Menorca, 12 for Ibiza and 1 for Formentera. The electoral law provided that parties, federations, coalitions and groupings of electors were allowed to present lists of candidates. However, groupings of electors were required to secure the signature of at least 1 percent of the electors registered in the constituency for which they sought election. Electors were barred from signing for more than one list of candidates. Concurrently, parties and federations intending to enter in coalition to take part jointly at an election were required to inform the relevant Electoral Commission within ten days of the election being called.
Election date
The term of the Parliament of the Balearic Islands expired four years after the date of its previous election, unless it was dissolved earlier. The election Decree was required to be issued no later than the twenty-fifth day prior to the date of expiry of parliament and published on the following day in the Official Gazette of the Balearic Islands, with election day taking place on the fifty-fourth day from publication. The previous election was held on 27 May 2007, which meant that the legislature's term would have expired on 27 May 2011. The election Decree was required to be published no later than 3 May 2011, with the election taking place on the fifty-fourth day from publication, setting the latest possible election date for the Parliament on Sunday, 26 June 2011. The President of the Government had the prerogative to dissolve the Parliament of the Balearic Islands and call a snap election, provided that no motion of no confidence was in process and that dissolution did not occur before one year had elapsed since the previous one. In the event of an investiture process failing to elect a regional President within a sixty-day period from the first ballot, the Parliament was to be automatically dissolved and a fresh election called.
Parties and leaders
Below is a list of the main parties and coalitions which contested the election:
Election debates
Opinion polls
The table below lists voting intention estimates in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" column on the right shows the percentage-point difference between the parties with the highest percentages in a given poll. When available, seat projections are also displayed below the voting estimates in a smaller font. 30 seats were required for an absolute majority in the Parliament of the Balearic Islands.
