The Spanish Socialist Workers' Party (PSOE) won the election with a new absolute majority of seats, albeit losing 1 seat from its 1983 result. The People's Alliance (AP), which had undergone an internal crisis after the breakup of the People's Coalition in 1986, lost support and fell from the coalition's 30% of the share to 24%, losing 3 seats as a result.
The main election winner was the centrist Democratic and Social Centre (CDS), a party led by the former Spanish Prime Minister Adolfo Suarez, which entered the Assembly for the first with 8 seats and 12% of the vote, becoming the only party within the Assembly that made gains, as all others (including regionalist United Extremadura (EU)) lost votes. United Left, an electoral coalition comprising the Communist Party of Spain and other left-wing parties, also lost 2 seats.
The term of the Assembly of Extremadura expired four years after the date of its previous ordinary election. The election decree was required to be issued no later than 25 days before the scheduled expiration date of parliament and published on the following day in the Official Journal of Extremadura (DOE), with election day taking place between 54 and 60 days after the decree's publication.[3] The previous election was held on 8 May 1983, which meant that the chamber's term would have expired on 8 May 1987. The election decree was required to be published in the DOE no later than 14 April 1987, setting the latest possible date for election day on 13 June 1987.
The Assembly of Extremadura could not be dissolved before the expiration date of parliament, except in the event of an investiture process failing to elect a regional president within a two-month period from the first ballot. In such a case, the Assembly was to be automatically dissolved and a snap election called, with elected lawmakers serving the remainder of its original four-year term.[4]
The election to the Assembly of Extremadura was officially called on 14 April 1987 with the publication of the corresponding decree in the DOE, setting election day for 10 June.[5]
The Assembly of Extremadura had a maximum of 65 seats, with the electoral law fixing its size at that number. All were elected in two multi-member constituencies—corresponding to the provinces of Badajoz and Cáceres, each of which was assigned an initial minimum of 20 seats and the remaining 25 distributed in proportion to population—using the D'Hondt method and closed-listproportional voting, with a five percent-threshold of valid votes (including blank ballots) in each constituency. Alternatively, parties could also enter the seat distribution as long as they ran candidates in both constituencies and reached five percent regionally.[7]
As a result of the aforementioned allocation, each Assembly constituency was entitled the following seats:[8]
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.[9]
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, whereas groupings of electors needed to secure the signature of at least two percent of the electorate in the constituencies for which they sought election, disallowing electors from signing for more than one list.[10]
Below is a list of the main parties and alliances which contested the election:
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; 33 seats were required for an absolute majority in the Assembly of Extremadura.
↑"Los socialistas mantienen la hegemonía"(PDF). El País (in Spanish). 4 June 1987. Archived from the original on 12 March 2017. Retrieved 1 January 2026.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
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2.9%
