2004 European Parliament election in Spain

Electoral system Voting for the European Parliament in Spain was based on universal suffrage, which comprised all Spanish nationals and resident non-national European citizens over 18 years of age with full political rights, provided that they had not been deprived of the right to vote by a final sentence, nor were legally incapacitated. 54 European Parliament seats were allocated to Spain as per the Treaty of Nice. All were elected in a single multi-member constituency—comprising the entire national territory—using the D'Hondt method and closed-list proportional voting, with no electoral threshold. The use of this electoral method resulted in an effective threshold depending on district magnitude and vote distribution. The law did not provide for by-elections to fill vacant seats; instead, any vacancies arising after the proclamation of candidates and during the legislative term were filled by the next candidates on the party lists or, when required, by designated substitutes. Outgoing delegation The table below shows the composition of the Spanish delegation in the chamber at the time of the election call. ==Parties and candidates==

The electoral law allowed for parties and federations registered in the interior ministry, alliances and groupings of electors to present lists of candidates. Parties and federations intending to form an alliance were required to inform the relevant electoral commission within 10 days of the election call. In order to be entitled to run, parties, federations, alliances and groupings of electors needed to secure the signature of at least 15,000 registered electors; this requirement could be lifted and replaced through the signature of at least 50 elected officials—deputies, senators, MEPs or members from the legislative assemblies of autonomous communities or from local city councils. Electors and elected officials were disallowed from signing for more than one list. Below is a list of the main parties and alliances which contested the election: The abertzale left tried to run under the umbrella of the Herritarren Zerrenda list (Basque for "Citizens' List"). However, the Spanish Supreme Court annulled HZ lists and banned them from running on 22 May 2004, as it considered that the candidacy's promoters and half of its candidates had links with the outlawed Batasuna and with the ETA environment. ==Opinion polls==

The tables below list opinion polling results 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 poll. Voting intention estimates The table below lists weighted voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font. ; Voting preferences The table below lists raw, unweighted voting preferences. Victory preferences The table below lists opinion polling on the victory preferences for each party in the event of a European Parliament election taking place. Victory likelihood The table below lists opinion polling on the perceived likelihood of victory for each party in the event of a European Parliament election taking place. ==Results==

Overall Maps File:2004 European election in Spain - Vote Strength.svg|Vote winner strength by province. File:2004 European election in Spain - AC results.svg|Vote winner strength by autonomous community. Distribution by European group Elected legislators The following table lists the elected legislators: ==Notes==